#and the server is using async functions

[bf-rally]

i have to use hooks dont i

I'm having the hardest time figuring out how to pass an array to a different page....

[this-week-in-rust]

This Week in Rust 582

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @ThisWeekInRust on X (formerly Twitter) or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Official

Announcing Rust 1.84.0

This Month in Our Test Infra: December 2024

Foundation

Announcing Rust Global 2025: London

Newsletters

This Month in Rust OSDev: December 2024

Rust Trends Issue #57

Project/Tooling Updates

cargo.nvim - A Neovim plugin for Rust's Cargo commands

Context-Generic Programming Updates: v0.3.0 Release and New Chapters

The RTen machine learning runtime - a 2024 retrospective

Observations/Thoughts

The gen auto-trait problem

Async Rust is about concurrency, not (just) performance

The Emotional Appeal of Rust

[audio] Brave with Anton Lazarev

[audio] Lychee with Matthias Endler

Rust Walkthroughs

Creating an embedded device driver in Rust

Const Evaluation in Rust For Hex Strings Validation

Concurrent and parallel future execution in Rust

[video] Intro to Embassy: embedded development with async Rust

[video] Comprehending Proc Macros

[video] CppCon - C++/Rust Interop: Using Bridges in Practice

Miscellaneous

December 2024 Rust Jobs Report

Tracing Large Memory Allocations in Rust with BPFtrace

On LLMs and Code Optimization

Nand2Tetris - Project 7 (VM Translator Part 1)

Crate of the Week

This week's crate is vidyut, a Sanskrit toolkit containing functionality about meter, segmentation, inflections, etc.

Thanks to Arun Prasad for the self-suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:

RFCs

No calls for testing were issued this week.

Rust

Tracking issue for RFC 3695: Allow boolean literals as cfg predicates

Testing steps

Rustup

No calls for testing were issued this week.

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

RFCs

Rust

Rustup

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

rama - see if improvements can/have-to be made to rama's http open telemetry layer support

rama – add rama to TechEmpower's FrameworkBenchmark

rama – add rama server benchmark to sharkbench

If you are a Rust project owner and are looking for contributors, please submit tasks here or through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

Rust Week (Rust NL) | Closes on 2024-01-19 | Utrecht, NL | Event on 2025-05-13 & 2025-05-14

Rust Summit | Rolling deadline | Belgrade, RS | Event on 2025-06-07

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

Updates from the Rust Project

469 pull requests were merged in the last week

add new {x86_64,i686}-win7-windows-gnu targets

arm: add unstable soft-float target feature

-Zrandomize-layout harder. Foo<T> != Foo<U>

best_blame_constraint: Blame better constraints when the region graph has cycles from invariance or 'static

mir_transform: implement #[rustc_force_inline]

run_make_support: add #![warn(unreachable_pub)]

account for identity substituted items in symbol mangling

add -Zmin-function-alignment

add default_field_values entry to unstable book

add a list of symbols for stable standard library crates

add an InstSimplify for repetitive array expressions

add inherent versions of MaybeUninit methods for slices

add missing provenance APIs on NonNull

assert that Instance::try_resolve is only used on body-like things

avoid ICE: Account for for<'a> types when checking for non-structural type in constant as pattern

avoid replacing the definition of CURRENT_RUSTC_VERSION

cleanup suggest_binding_for_closure_capture_self diag in borrowck

condvar: implement wait_timeout for targets without threads

convert typeck constraints in location-sensitive polonius

depth limit const eval query

detect mut arg: &Ty meant to be arg: &mut Ty and provide structured suggestion

do not ICE when encountering predicates from other items in method error reporting

eagerly collect mono items for non-generic closures

ensure that we don't try to access fields on a non-struct pattern type

exhaustively handle expressions in patterns

fix ICE with references to infinite structs in consts

fix cycle error only occurring with -Zdump-mir

fix handling of ZST in win64 ABI on windows-msvc targets

implement const Destruct in old solver

lower Guard Patterns to HIR

make (unstable API) UniqueRc invariant for soundness

make MIR cleanup for functions with impossible predicates into a real MIR pass

make lit_to_mir_constant and lit_to_const infallible

normalize each signature input/output in typeck_with_fallback with its own span

remove a bunch of diagnostic stashing that doesn't do anything

remove allocations from case-insensitive comparison to keywords

remove special-casing for argument patterns in MIR typeck (attempt to fix perf regression of #133858)

reserve x18 register for aarch64 wrs vxworks target

rm unnecessary OpaqueTypeDecl wrapper

suggest Replacing Comma with Semicolon in Incorrect Repeat Expressions

support target specific optimized-compiler-builtins

unify conditional-const error reporting with non-const error reporting

use a post-monomorphization typing env when mangling components that come from impls

use llvm.memset.p0i8.* to initialize all same-bytes arrays

used pthread name functions returning result for FreeBSD and DragonFly

warn about broken simd not only on structs but also enums and unions when we didn't opt in to it

implement trait upcasting

mir-opt: GVN some more transmute cases

miri: add FreeBSD maintainer; test all of Solarish

miri: added Android to epoll and eventfd test targets

miri: adjust the way we build miri-script in RA, to fix proc-macros

miri: illumos: added epoll and eventfd

miri: supported fioclex for ioctl on macos

miri: switched FreeBSD to pthread_setname_np

miri: use deref_poiner_as instead of deref_pointer

proc_macro: Use ToTokens trait in quote macro

add #[inline] to copy_from_slice

impl String::into_chars

initial fs module for uefi

hashbrown: added Allocator template argument for rustc_iter

account for optimization levels other than numbers

cargo: schemas: Fix 'metadata' JSON Schema

cargo: schemas: Fix the [lints] JSON Schema

cargo: perf: cargo-package: match certain path prefix with pathspec

cargo: fix: emit warnings as warnings when learning rust target info

cargo: make "C" explicit in extern "C"

cargo: setup cargo environment for cargo rustc --print

cargo: simplify SourceID Ord/Eq

rustdoc-json: include items in stripped modules in Crate::paths

rustdoc: use import stability marker in display

rustdoc: use stable paths as preferred canonical paths

rustfmt: drop nightly-gating of the --style-edition flag registration

clippy: add new lint unneeded_struct_pattern

clippy: auto-fix slow_vector_initialization in some cases

clippy: do not intersect spans coming from different contexts

clippy: do not look for significant drop inside .await expansion

clippy: do not propose to elide lifetimes if this causes an ambiguity

clippy: do not remove identity mapping if mandatory mutability would be lost

clippy: do not trigger redundant_pub_crate in external macros

clippy: don't emit machine applicable map_flatten lint if there are code comments

clippy: don't suggest to use cloned for Cow in unnecessary_to_owned

clippy: fix type suggestion for manual_is_ascii_check

clippy: improve needless_as_bytes to also detect str::bytes()

clippy: new lint: manual_ok_err

clippy: remove unneeded parentheses in unnecessary_map_or lint output

rust-analyzer: add a new and improved syntax tree view

rust-analyzer: add config setting which allows adding additional include paths to the VFS

rust-analyzer: re-implement rust string highlighting via tool attribute

rust-analyzer: fix JSON project PackageRoot buildfile inclusion

rust-analyzer: do not compute prettify_macro_expansion() unless the "Inline macro" assist has actually been invoked

rust-analyzer: do not offer completions within macro strings

rust-analyzer: fix env/option_env macro check disregarding macro_rules definitions

rust-analyzer: fix ref text edit for binding mode hints

rust-analyzer: fix a bug with missing binding in MBE

rust-analyzer: fix actual token lookup in completion's expand()

rust-analyzer: fix another issue with fixup reversing

rust-analyzer: fix diagnostics not clearing between flychecks

rust-analyzer: make edition per-token, not per-file

rust-analyzer: implement #[rust_analyzer::skip] for bodies

rust-analyzer: implement implicit sized bound inlay hints

rust-analyzer: improve hover module path rendering

Rust Compiler Performance Triage

A quiet week with little change to the actual compiler performance. The biggest compiler regression was quickly recognized and reverted.

Triage done by @rylev. Revision range: 0f1e965f..1ab85fbd

Summary:

(instructions:u) mean range count Regressions ❌ (primary) 0.4% [0.1%, 1.8%] 21 Regressions ❌ (secondary) 0.5% [0.0%, 2.0%] 35 Improvements ✅ (primary) -0.8% [-2.7%, -0.3%] 6 Improvements ✅ (secondary) -10.2% [-27.8%, -0.1%] 13 All ❌✅ (primary) 0.2% [-2.7%, 1.8%] 27

4 Regressions, 3 Improvements, 3 Mixed; 3 of them in rollups 44 artifact comparisons made in total

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

No RFCs were approved this week.

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

RFCs

Supertrait item shadowing v2

Tracking Issues & PRs

Rust

remove support for the (unstable) #[start] attribute

fully de-stabilize all custom inner attributes

Uplift clippy::double_neg lint as double_negations

Optimize Seek::stream_len impl for File

[rustdoc] Add sans-serif font setting

Tracking Issue for PathBuf::add_extension and Path::with_added_extension

Make the wasm_c_abi future compat warning a hard error

const-eval: detect more pointers as definitely not-null

Consider fields to be inhabited if they are unstable

disallow repr() on invalid items

Cargo

No Cargo Tracking Issues or PRs entered Final Comment Period this week.

Language Team

No Language Team Proposals entered Final Comment Period this week.

Language Reference

distinct 'static' items never overlap

Unsafe Code Guidelines

No Unsafe Code Guideline Tracking Issues or PRs entered Final Comment Period this week.

New and Updated RFCs

Make trait methods callable in const contexts

RFC: Allow packages to specify a set of supported targets

Upcoming Events

Rusty Events between 2025-01-15 - 2025-02-12 🦀

Virtual

2025-01-15 | Virtual (London, UK) | London Rust Project Group

Meet and greet with project allocations

2025-01-15 | Virtual (Tel Aviv-Yafo, IL) | Code Mavens 🦀 - 🐍 - 🐪

An introduction to WASM in Rust with Márk Tolmács (Virtual, English)

2025-01-15 | Virtual (Vancouver, BC, CA) | Vancouver Rust

Leptos

2025-01-16 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn Meetup

2025-01-16 | Virtual (San Diego, CA, US) | San Diego Rust

San Diego Rust January 2025 Tele-Meetup

2025-01-16 | Virtual and In-Person (Redmond, WA, US) | Seattle Rust User Group

January Meetup

2025-01-17 | Virtual (Jersey City, NJ, US) | Jersey City Classy and Curious Coders Club Cooperative

Rust Coding / Game Dev Fridays Open Mob Session!

2025-01-21 | Virtual (Tel Aviv-Yafo, IL) | Rust 🦀 TLV

Exploring Rust Enums with Yoni Peleg (Virtual, Hebrew)

2025-01-21 | Virtual (Washington, DC, US) | Rust DC

Mid-month Rustful

2025-01-22 | Virtual (Rotterdam, NL) | Bevy Game Development

Bevy Meetup #8

2025-01-23 & 2025-01-24 | Virtual | Mainmatter Rust Workshop

Remote Workshop: Testing for Rust projects – going beyond the basics

2025-01-24 | Virtual (Jersey City, NJ, US) | Jersey City Classy and Curious Coders Club Cooperative

Rust Coding / Game Dev Fridays Open Mob Session!

2025-01-26 | Virtual (Tel Aviv-Yafo, IL) | Rust 🦀 TLV

Rust and embedded programming with Leon Vak (online in Hebrew)

2025-01-27 | Virtual (London, UK) | London Rust Project Group

using traits in Rust for flexibility, mocking/ unit testing, and more

2025-01-28 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Last Tuesday

2025-01-30 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn Meetup

2025-01-30 | Virtual (Charlottesville, VA, US) | Charlottesville Rust Meetup

Quantum Computers Can’t Rust-Proof This!

2025-01-30 | Virtual (Tel Aviv-Yafo, IL) | Code Mavens 🦀 - 🐍 - 🐪

Are We Embedded Yet? - Implementing tiny HTTP server on a microcontroller

2025-01-31 | Virtual (Delhi, IN) | Hackathon Raptors Association

Blazingly Fast Rust Hackathon

2025-01-31 | Virtual (Jersey City, NJ, US) | Jersey City Classy and Curious Coders Club Cooperative

Rust Coding / Game Dev Fridays Open Mob Session!

2025-02-01 | Virtual (Kampala, UG) | Rust Circle Kampala

Rust Circle Meetup

2025-02-04 | Virtual (Buffalo, NY, US) | Buffalo Rust Meetup

Buffalo Rust User Group

2025-02-05 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2025-02-07 | Virtual (Jersey City, NJ, US) | Jersey City Classy and Curious Coders Club Cooperative

Rust Coding / Game Dev Fridays Open Mob Session!

2025-02-11 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Second Tuesday

2025-02-11 | Virtual (Tel Aviv-Yafo, IL) | Code Mavens 🦀 - 🐍 - 🐪

Meet Elusion: New DataFrame Library powered by Rust 🦀 with Borivoj Grujicic

Europe

2025-01-16 | Amsterdam, NL | Rust Developers Amsterdam Group

Meetup @ Avalor AI

2025-01-16 | Karlsruhe, DE | Rust Hack & Learn Karlsruhe

Karlsruhe Rust Hack and Learn Meetup bei BlueYonder

2025-01-18 | Stockholm, SE | Stockholm Rust

Ferris' Fika Forum #8

2025-01-21 | Edinburgh, GB | Rust and Friends

Rust and Friends (evening pub)

2025-01-21 | Ghent, BE | Systems Programming Ghent

Tech Talks & Dinner: Insights on Systems Programming Side Projects (in Rust) - Leptos (full-stack Rust with webassembly), Karyon (distributed p2p software in Rust), FunDSP (audio synthesis in Rust)

2025-01-21 | Leipzig, SN, DE | Rust - Modern Systems Programming in Leipzig

Self-Organized Peer-to-Peer Networks using Rust

2025-01-22 | London, GB | Rust London User Group

Rust London's New Years Party & Community Swag Drop

2025-01-22 | Oberursel, DE | Rust Rhein Main

Rust 2024 Edition and Beyond

2025-01-23 | Barcelona, ES | Barcelona Free Software

Why Build a New Browser Engine in Rust?

2025-01-23 | Paris, FR | Rust Paris

Rust meetup #74

2025-01-24 | Edinburgh, GB | Rust and Friends

Rust and Friends (daytime coffee)

2025-01-27 | Prague, CZ | Rust Prague

Rust Meetup Prague (January 2025)

2025-01-28 | Aarhus, DK | Rust Aarhus

Hack Night - Advent of Code

2025-01-28 | Manchester, GB | Rust Manchester

Rust Manchester January Code Night

2025-01-30 | Augsburg, DE | Rust Meetup Augsburg

Rust Meetup #11: Hypermedia-driven development in Rust

2025-01-30 | Berlin, DE | Rust Berlin

Rust and Tell - Title

2025-02-01 | Brussels, BE | FOSDEM 2025

FOSDEM Rust Devroom

2025-02-01 | Nürnberg, DE | Rust Nuremberg

Technikmuseum Sinsheim

2025-02-05 | Oxford, GB | Oxford Rust Meetup Group

Oxford Rust and C++ social

2025-02-12 | Reading, GB | Reading Rust Workshop

Reading Rust Meetup

North America

2025-01-16 | Nashville, TN, US | Music City Rust Developers

Rust Game Development Series 1: Community Introductions

2025-01-16 | Redmond, WA, US | Seattle Rust User Group

January Meetup

2025-01-16 | Spokane, WA, US | Spokane Rust

Spokane Rust Monthly Meetup: Traits and Generics

2025-01-17 | México City, MX | Rust MX

Multithreading y Async en Rust 101 - HolaMundo - Parte 3

2025-01-18 | Boston, MA, US | Boston Rust Meetup

Back Bay Rust Lunch, Jan 18

2025-01-21 | New York, NY, US | Rust NYC

Rust NYC Monthly Meetup

2025-01-21 | San Francisco, CA, US | San Francisco Rust Study Group

Rust Hacking in Person

2025-01-22 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

2025-01-23 | Mountain View, CA, US | Hacker Dojo

RUST MEETUP at HACKER DOJO | Rust Meetup at Hacker Dojo - Mountain View Rust Meetup Page

2025-01-28 | Boulder, CO, US | Boulder Rust Meetup

From Basics to Advanced: Testing

2025-02-06 | Saint Louis, MO, US | STL Rust

Async, the Future of Futures

Oceania:

2025-02-04 | Auckland, NZ | Rust AKL

Rust AKL: How We Learn Rust

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

This is a wonderful unsoundness and I am incredibly excited about it :3

– lcnr on github

Thanks to Christoph Grenz for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, U007D, joelmarcey, mariannegoldin, bennyvasquez, bdillo

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[desert-palm]

Has anyone found a way to use both GraphQL Shield and dataloaders at the same time while using Apollo Server and NestJS?

I recently found that because I have asynchronous calls being made in some of my shield rules, it's causing my dataloader batch functions to be called multiple times, when they should only be called once, which leaves me with the N+1 problem across my entire app.

I believe this is due to how dataloader requires that all of the batch function calls occur during the same event loop "tick", and the async calls in my shield rules are preventing this.

Here's where I asked the question on reddit

[quietmarie]

What is Async Anyway?

Explaining async/await and general concurrency concepts in programming languages.

A lot of modern languages have async/await syntax built directly into them, and the construct can be extremely useful. Examples of languages that include these concepts are JavaScript, C#, Python, and Swift, and even modern relatively low-level languages like Rust have this syntax. Even though it's usually thought of as a more advanced feature, I think it is really not that hard to use once you get the hang of it, and it is super useful and rewarding when you really understand it.

This is going to be a bit of a long and pretty technical post, but I hope it can give you some confidence to know what async/await really does when you use it, and maybe it can help you use it more effectively. Keep in mind that I will not be able to go over everything in super deep detail, and that I am going to simplify stuff, but it should give you an idea how these systems work.

I am a little curious about eventually following this up with a post looking at how these systems compare under the hood in different programming languages, so let me know if you'd be interested in that.

Big post under the cut.

Parallelism and Concurrency

Computers today can do many things at the same time. And I mean that literally: in one instant, a modern CPU can be working on multiple instructions. That's because a single CPU has multiple cores that can all execute code (mostly) independent from each other. This is called parallelism, and the way we as programmers interact with that is through threads. Most programming languages, especially "lower level" ones, have a way for programmers to create a thread that will run some part of your code. Creating a thread is telling the computer that it can, and should, run the code in your threads in parallel (although various systems such as the OS still have discretion over when and if that actually happens).

Parallelism is not quite concurrency tho. Where parallelism is about your computer literally doing multiple things at once, concurrency is about your computer doing multiple things, but not at once. With concurrency, you kind of pretend you're doing a parallelism. But in reality, stuff doesn't happen at the same time. Instead, your system (runtime) does some work on task A a bit, then on task B, then maybe again on task A, etc., but doesn't work on the two at the same time. So, in a concurrent system it might look like task A and B are progressing simultaneously from the outside, but work actually only happens in sequence.

Let's Talk About I/O

I/O stands for input/output and describes data in your program that comes from elsewhere, or that gets sent elsewhere. So for example, user input is I/O. And similarly, a web request can be I/O, whether you send it or receive it. So let's use that as an example: you send a web request to some API to fetch you the cutest bunny images and facts:

But the service is taking its sweet time to respond.

Fact: Loading bunny fact…

With how we did it here, we halt execution of the entire thread until the response comes in (at least in most languages, more on that later). In this case, we call get a blocking method because it, well, blocks the thread without actively doing useful work.

What if we could instead use the thread for other tasks instead of just sitting there, twiddling our thumbs and waiting on the server? This smells of concurrency…

Callbacks

Callbacks are a way for programmers to avoid that period of thumb twiddling. The new getWithCallback function now returns immediately, but it doesn't return a value. Instead, we have to register the code we want to run once the server responds with the function:

The function we pass to getWithCallback is called the callback, and it gets called by the client* only once the response arrives. Oh look, here it is:

Fact: A rabbit's life span is about 8 years, though sterilized rabbits (those who are spayed/neutered) can live as long as 10-12 years.

*"The client calls it" is a big simplification, there might be a lot more stuff happening here. But the important bit is that the client magically does not need to block to wait for the response.

Promises and Futures

What JavaScript calls Promises and what a lot of the other languages call Futures is essentially sugar sprinkled on callbacks - it makes our callback code a little nicer. Callbacks can commonly create a concept called "callback hell", where you have to call a function that takes a callback inside the function that takes a callback inside the function that takes a callback…

(Code modified from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises)

To avoid this, functions now can return a Promise instead of taking a callback. Promises represent the promise that, while a concrete value might not exist right now, it will in the future. Once the value exists, we say the Promise resolves. The code above with Promises would then look like this:

It still doesn't look perfect, and there are things you can do to make it look a little nicer, but it's so much less nested. The callback in the then function will be called once the value is ready, and the callback itself can also return a Promise. The then function then returns a Promise which will get resolved once the future from the callback is resolved. Many other languages have a concept similar to JavaScript's Promise, and it's often called something like Future or Task (because it would be too easy to have consistent naming across languages).

Now keep in mind neither of those solutions above are really "concurrency" in the definition we used above. This is because the thread we call, for example, getWithCallback on still completely belongs to us. We could keep using it, and we would not get interrupted to execute the callback. Depending on the language and runtime, the callback might get executed on a different thread, or the runtime might have to wait until we are completely done with what we were doing to then use our thread to call it. The same thing goes for the callbacks in the then method of promises.

Async/Await

And async/await is just some sugar and magic fairy dust on top of Promises (or Futures or whatever). It makes our code look like it should be blocking, but in reality it isn't. Here's what our bunny image code looks like with async/await:

So here, a couple things happen. First, the Promise is created and the web request is initiated. Then, the Promise is awaited. For that, (if the Promise is not resolved at this point already,) the task first yields, meaning it tells the runtime that it is not doing any useful work at the moment, and that the thread it ran on can be used for other tasks. The runtime then makes a note of where to continue execution when that Promise resolves, and looks around for other tasks that currently need executing to put them on that thread. After a while passes, the Promise resolves, and once the runtime has some resources available for us (maybe because another task just yielded), execution on our original task is continued with the API response.

Fact: A rabbit's teeth never stop growing! Many people believe they need to chew to keep their teeth short. While they do enjoy chewing, it's the normal wear from where their top and bottom teeth meet that keeps a rabbit's teeth short.

This is more in line with the concurrency we sought out above. We can interleave other computations while our task is still running, but during times where it is not doing any useful work. (Still, because you may have multiple threads your tasks can run on and move between, it might not always be 100% technically accurate to call this system concurrent.) This is also why it is important to not block for long in async contexts: if you're hogging the thread for too long, you're stopping other tasks from progressing and throwing a lot of the benefits you gained from doing it concurrently in the bin. Most async runtimes will give you some option to run expensive or blocking code elsewhere, so that you can keep the benefits you gain from async.

So that's the explanation what async/await does, and the broad strokes of how it works. If you have any more questions regarding the topic, feel free to ask! I think it'll be fun to occasionally write a longer post on interesting things I've learned, so if you have topic suggestions, don't be afraid to tell me!

Further links and sources

Don't Block The Event Loop! - Why you should avoid blocking in Node.js, and what pitfalls to look out for.

I got the bnuuy images and facts from the animality API. The licenses on the images are not super clear, but I'll assume it's okay for me to use them here with credit because it's an open API.

I lifted the definitions and some of the explanation for parallelism and concurrency from Steve Klabnik's talk on Rust's Journey to Async/Await. The talk is more technical and very focused on Rust, but it's a great talk.

I referenced the mdn web docs at various points, they're a great resource.

I created the code screenshots using the carbon app.

[codingbrushup]

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✅ Project-Based Learning: You'll build 5+ real-world projects that simulate job-ready tasks.

✅ Mentor Support: Access guidance from professionals with years of coding and teaching experience.

✅ Job-Oriented Focus: The job-oriented JavaScript course is designed to help you build a portfolio, prepare for interviews, and land your first job.

30-Day JavaScript Mastery Plan

Here's your JavaScript learning roadmap curated by Coding Brushup:

🔹 Week 1: JavaScript Basics

Day 1–2: Introduction to JavaScript, variables, and data types

Day 3: Functions and scope

Day 4: Conditional statements and loops

Day 5: Arrays and objects

Day 6: Basic DOM manipulation

Day 7: Mini project – To-Do List

🔹 Week 2: Intermediate JavaScript Concepts

Day 8: JavaScript ES6+ (let, const, arrow functions)

Day 9: Array methods (map, filter, reduce)

Day 10: Object-oriented JavaScript

Day 11: Error handling and debugging

Day 12–13: Working with the browser DOM

Day 14: Mini project – Weather Ap

🔹 Week 3: Asynchronous JavaScript & APIs

Day 15: Callbacks and promises

Day 16: Async/await explained simply

Day 17–18: Fetch API and consuming REST APIs

Day 19–20: JSON and local storage

Day 21: Project – Movie Search App using an API

🔹 Week 4: Final Projects and Job Prep

Day 22–24: Build a CRUD application (e.g., Notes app)

Day 25–26: Introduction to JavaScript frameworks (React basics)

Day 27–28: Final capstone project – Portfolio Website

Day 29: Resume writing and GitHub profile setup

Day 30: Mock interview & feedback session with Coding Brushup experts

Real Success Stories from Coding Brushup

“I had zero coding background. Thanks to Coding Brushup’s JavaScript course, I built a strong portfolio and landed a front-end developer role within 3 months!” — Aarti S., Junior Developer

“Coding Brushup doesn’t just teach JavaScript—it prepares you for real jobs. The mentor sessions and interview prep gave me the confidence I needed.” — Neeraj T., Full Stack Developer

Our mission is simple: make you job-ready with hands-on JavaScript skills and personalized mentorship.

Tools & Resources You’ll Use

During your JavaScript journey with Coding Brushup, you’ll gain hands-on experience with:

Code editors: VS Code

Version control: Git & GitHub

Browser DevTools: Chrome Developer Tools

APIs: OpenWeatherMap, OMDB, JSONPlaceholder

Build tools: Node.js, npm (for basic module use)

Every tool used in the course is chosen with the job market in mind, making the experience more than just theoretical.

Is This Course Right for You?

The job-oriented JavaScript course from Coding Brushup is ideal for:

Students and freshers aiming for their first developer role

Working professionals switching to web development

Self-learners needing a structured path and mentorship

Freelancers who want to sharpen their JS skills for better projects

No prior programming experience is required. All you need is commitment and a willingness to learn.

Conclusion: Your JavaScript Journey Starts Now

Mastering JavaScript in 30 days may sound ambitious, but with the right roadmap, resources, and mentorship, it's absolutely possible. At Coding Brushup, we combine technical instruction with career guidance to ensure you're not just learning JavaScript—you're learning how to use it in the real world.

Ready to launch your career in web development?

👉 Enroll in the Job-Oriented JavaScript Course by Coding Brushup and start your 30-day journey to mastering JavaScript today!

[neiljordansimon]

Common Mistakes to Avoid in JavaScript Development

JavaScript is a powerful yet flexible language, which can sometimes lead to subtle bugs and performance issues if not used correctly. Whether you're a developer or a business looking to hire JavaScript development companies in USA, understanding these common pitfalls can help ensure high-quality, maintainable, and efficient code.

1. Not Using Strict Mode

'use strict'; helps catch silent errors by enforcing stricter parsing and error handling. Many top JavaScript development companies in USA enforce strict mode to avoid:

Accidental global variables (missing var, let, or const)

Duplicate parameter names

Deleting undeletable properties

Solution: Always enable strict mode at the top of scripts or functions.

2. Ignoring Asynchronous Behavior

JavaScript’s non-blocking nature can lead to unexpected behavior if not handled properly:

Callback Hell: Nested callbacks make code unreadable.

Unhandled Promises: Forgetting .catch() in promises can hide errors.

Race Conditions: Async operations completing out of expected order.

Solution: Use async/await or Promises with proper error handling.

3. Memory Leaks

Poor memory management can slow down applications over time. Common causes:

Unreleased Event Listeners (not removing them when no longer needed)

Global Variables (accidentally storing large data in global scope)

Closures holding references unnecessarily

Solution: Use browser DevTools to monitor memory usage and clean up resources.

4. Improper Variable Scoping

Using var instead of let or const can lead to:

Hoisting issues (variables being accessible before declaration)

Block-scope confusion (variables leaking outside loops/conditionals)

Solution: Prefer const for constants and let for block-scoped variables.

5. Not Handling Errors Gracefully

Failing to implement proper error handling leads to crashes and poor UX. Common mistakes:

Silent Failures (ignoring try-catch in async operations)

Generic Error Messages (not logging meaningful debug info)

Solution: Use structured error handling and logging (e.g., Sentry, Winston).

6. Overlooking Cross-Browser Compatibility

Not all browsers support the latest JavaScript features. Issues include:

Missing polyfills for modern ES6+ features

Inconsistent API support (e.g., fetch in older browsers)

Solution: Use Babel for transpilation and feature detection instead of browser sniffing.

7. Poor Performance Optimization

JavaScript can become sluggish if not optimized:

Excessive DOM Manipulation (causing reflows/repaints)

Blocking the Event Loop (long-running synchronous tasks)

Inefficient Loops (using forEach when for...of or while is better)

Solution: Use debouncing/throttling for events and Web Workers for CPU-heavy tasks.

8. Not Testing Thoroughly

Skipping tests leads to bugs in production. Common gaps:

No Unit Tests (using Jest, Mocha)

Missing Edge Cases (unhandled null/undefined inputs)

No End-to-End Testing (Cypress, Playwright)

Solution: Leading JavaScript development companies in USA enforce test-driven development (TDD) for reliability.

9. Security Vulnerabilities

JavaScript apps are prone to attacks if not secured:

XSS (Cross-Site Scripting) – Sanitize user inputs with DOMPurify.

CSRF (Cross-Site Request Forgery) – Use anti-CSRF tokens.

Insecure Dependencies – Regularly audit packages with npm audit.

Solution: Follow OWASP guidelines and conduct security audits.

10. Choosing the Wrong Framework/Library

Not every project needs React, Angular, or Vue. Mistakes include:

Over-engineering (using a heavy framework for a simple site)

Ignoring SSR (Server-Side Rendering) leading to poor SEO

Solution: Evaluate project needs before selecting a tech stack.

Why Partner with Top JavaScript Development Companies in USA?

Avoiding these mistakes requires expertise. The best JavaScript development companies in USA follow: ✔ Best practices in coding standards ✔ Performance optimization techniques ✔ Security-first development ✔ Comprehensive testing strategies

By being aware of these pitfalls and working with experienced developers, you can build robust, scalable, and high-performing JavaScript applications.

[sruthypm]

Unlock Your Career in Full-Stack Development with Techmindz's Full-Stack JavaScript Course in Kochi

JavaScript is undeniably the heart of modern web development. As a versatile and powerful language, it allows developers to build both the front-end and back-end of web applications using a single language. If you’re eager to dive deep into full-stack development and master JavaScript, Techmindz offers the perfect learning opportunity with our Full-Stack JavaScript Course in Kochi. This course will equip you with the essential skills to become a proficient JavaScript developer and build dynamic, interactive, and scalable web applications.

Why Learn Full-Stack JavaScript?

The demand for full-stack JavaScript developers is rapidly increasing across industries, and it’s no surprise why. With the ability to use JavaScript for both the client-side (front-end) and server-side (back-end), full-stack JavaScript developers are able to streamline development, reduce project complexity, and create end-to-end solutions using one programming language. Mastering the entire stack of JavaScript technologies opens doors to exciting job opportunities and career growth.

What Makes Techmindz's Full-Stack JavaScript Course Stand Out?

At Techmindz, we understand the need for comprehensive, hands-on training to master full-stack JavaScript development. Our course is designed to provide you with in-depth knowledge and practical experience in both front-end and back-end JavaScript technologies, including Node.js, Express.js, MongoDB, and React.js. Through expert-led instruction, real-world projects, and interactive coding sessions, you will become fully equipped to handle the entire development process—from building user interfaces to designing databases and developing server-side logic.

What You Will Learn in Our Full-Stack JavaScript Course

Front-End Development with JavaScript:

HTML & CSS: Learn the building blocks of web development, creating responsive and user-friendly web pages.

JavaScript Basics: Master JavaScript fundamentals, including variables, loops, functions, and objects.

React.js: Dive into the world of React, one of the most popular JavaScript libraries, to build dynamic and efficient user interfaces.

State Management with Redux: Learn how to manage application state in large-scale React applications using Redux.

Asynchronous JavaScript: Master concepts like promises, async/await, and AJAX for handling asynchronous operations and API interactions.

Back-End Development with JavaScript:

Node.js: Learn how to use Node.js to build scalable, high-performance server-side applications.

Express.js: Understand how to work with Express.js to streamline routing and simplify server-side logic.

MongoDB: Master MongoDB, a NoSQL database that works seamlessly with JavaScript applications to store and manage data.

RESTful APIs: Learn to design and develop RESTful APIs that allow communication between the front-end and back-end of applications.

Authentication & Authorization: Implement secure user authentication and authorization mechanisms using technologies like JWT (JSON Web Tokens).

Additional Topics:

Version Control with Git & GitHub: Learn the importance of version control and how to use Git and GitHub for collaboration and code management.

Testing and Debugging: Master tools like Mocha and Chai for unit testing and debugging your JavaScript applications.

Deployment: Gain hands-on experience deploying your full-stack applications to cloud platforms like Heroku and AWS.

Agile Development: Understand Agile development principles to work efficiently in teams and manage projects effectively.

Why Choose Techmindz for Full-Stack JavaScript Training?

Experienced Trainers: Our instructors are industry experts with years of experience in JavaScript development, ensuring that you receive the most relevant and up-to-date knowledge.

Project-Based Learning: At Techmindz, we focus on practical, hands-on learning. You will work on real-world projects to build a strong portfolio that showcases your full-stack JavaScript skills.

Comprehensive Curriculum: The course is designed to cover every aspect of full-stack JavaScript development, from front-end technologies to back-end frameworks.

Flexible Learning Options: Whether you prefer classroom training or online classes, we offer flexible learning options to accommodate your schedule.

Job Placement Assistance: We provide placement support to help you land your dream job after completing the course. This includes resume building, interview preparation, and job referrals.

Affordable Pricing: Get top-tier training at competitive prices, ensuring you get the best value for your investment.

Who Should Enroll in the Full-Stack JavaScript Course?

Our Full-Stack JavaScript Course in Kochi is ideal for:

Beginner Developers: If you're new to web development and want to learn how to build complete web applications using JavaScript.

Front-End Developers: If you already have experience with front-end technologies like HTML, CSS, and JavaScript and want to expand your skills to the back-end.

Back-End Developers: If you’re familiar with server-side development and want to transition to full-stack JavaScript development.

IT Professionals & Freelancers: Developers looking to enhance their skill set and offer full-stack JavaScript development services to clients.

Entrepreneurs: Individuals looking to build and scale their own web applications.

Career Opportunities After Completing the Course

Upon completing the Full-Stack JavaScript Course in Kochi, you will be equipped to take on roles such as:

Full-Stack JavaScript Developer

Front-End Developer (React.js/Node.js)

Back-End Developer (Node.js/Express.js)

Web Developer

JavaScript Developer

API Developer

With JavaScript being the most widely used programming language for web development, the demand for full-stack JavaScript developers is higher than ever. By completing this course, you'll be well-prepared to take advantage of numerous job opportunities in the web development industry.

Why Full-Stack JavaScript Development is in Demand?

The power of JavaScript lies in its versatility. As a full-stack JavaScript developer, you’ll have the ability to build web applications entirely using JavaScript, which simplifies the development process and boosts productivity. With the rise of modern web applications and the growth of technologies like React, Node.js, and MongoDB, JavaScript developers are in high demand, making this the perfect time to invest in your skills.

Get Started Today with Techmindz's Full-Stack JavaScript Course in Kochi

If you're ready to start your journey toward becoming a proficient full-stack JavaScript developer, Techmindz is the place to be. Our Full-Stack JavaScript Course in Kochi will provide you with the knowledge, skills, and experience necessary to excel in the tech industry.

https://www.techmindz.com/java-programming-course-kochi-infopark/

[sparxsys23]

Supercharging Jira Cloud with Forge Services: A Look Through Sparxsys Solutions

In the world of agile teams and modern project management, Jira Cloud has become a cornerstone tool for collaboration, task tracking, and workflow automation. But with every versatile platform comes the need for customization—and that’s where Jira Forge shines.

With Forge, Atlassian provides a cloud-native development platform that enables developers to create secure, scalable, and reliable apps right within the Jira ecosystem. Among Forge’s most powerful features are Forge Services, which help developers interact with Jira's APIs, manage storage, call external APIs, and more—all while keeping performance and security in check.

In this post, we’ll explore how Jira Forge Services can transform your Jira experience, and we’ll look at how companies like Sparxsys Solutions are leveraging this technology to build real-world apps that solve specific business problems.

What Are Jira Forge Services?

Atlassian Forge Services are a collection of pre-packaged modules that simplify tasks such as:

Storing data (@forge/storage)

Calling remote APIs (@forge/api)

Authenticating with third-party systems (@forge/oauth)

Fetching information from Jira itself (@forge/jira)

These services eliminate the need to set up separate backend infrastructure. Everything runs in Atlassian’s secure cloud, which means no separate servers or databases to maintain.

This serverless model greatly reduces development complexity and security risks, making Forge the ideal platform for small and enterprise teams alike.

Why Use Forge Services?

Whether you’re building an internal Jira app for your organization or creating a marketplace app for global users, Forge Services offer some clear benefits:

Security by Design: Forge apps operate within Atlassian’s security sandbox, so you don’t have to worry about common vulnerabilities like SQL injection or cross-site scripting.

Simplified Development: With built-in services like @forge/api, calling the Jira REST API becomes a breeze. No need to handle authentication headers manually.

Scalability: Since the apps run in the cloud, they scale automatically based on demand.

Low Maintenance: Forge handles hosting, security, and patching, which reduces the overhead for developers.

Real-World Implementation: Sparxsys Solutions

One of the standout players in the Atlassian ecosystem is Sparxsys Solutions, a leading consultancy that specializes in Jira, Confluence, and Atlassian app development. Known for their contributions to the Atlassian Marketplace and strong community presence, Sparxsys has been at the forefront of leveraging Forge Services.

In one of their recent projects, Sparxsys developed a custom Forge app to help a client automate Jira issue creation based on incoming emails from a specific service. Using Forge’s API and storage services, they created an app that:

Listens to email events via a webhook

Parses the email content

Extracts relevant information

Creates a Jira issue automatically with all required custom fields

All of this was done without deploying a single server. The result was a lean, maintainable, and highly scalable solution that was delivered in record time.

A Glimpse at the Code

Here’s a simple example of how @forge/api can be used in a Forge app to fetch Jira issues:

javascript

CopyEdit

import api from '@forge/api'; export async function run() { const response = await api.asApp().requestJira('/rest/api/3/search?jql=assignee=currentUser()'); const data = await response.json(); console.log(data); }

In just a few lines, developers can interact with Jira data securely and efficiently. No tokens, no auth headaches—just clean, direct API access.

What About Forge Limitations?

Forge is still evolving, and there are a few limitations developers should be aware of:

Not all Jira REST API endpoints are currently supported.

Timeouts can affect long-running processes.

Limited ability to run background jobs (though Atlassian is improving this with scheduled triggers).

That said, Forge is gaining features rapidly, and the benefits of serverless architecture often outweigh these limitations for many use cases.

Final Thoughts

Jira Forge Services represent a major leap forward in Atlassian app development. They offer a blend of security, scalability, and simplicity that’s hard to match with traditional app frameworks. By offloading infrastructure concerns, Forge lets developers focus purely on creating value.

Companies like Sparxsys Solutions are already building innovative, real-world solutions on this platform—and that’s just the beginning. Whether you're a seasoned Jira admin or a developer looking to break into the Atlassian ecosystem, now is the perfect time to explore what Forge Services can offer.

Want to get started? Visit the Forge Developer Hub and start building your first app today.

[jellyfishtechnologies]

Best Node.js Frameworks to Use in 2025

The Node.js development platform remains popular because it provides developers high performance capabilities alongside scalable features and an extensive framework ecosystem. More secure powerful web applications together with improved performance will increase in demand when we reach 2025. The performance and maintenance quality of your project heavily relies on selecting the most suitable Node.js framework for applications ranging from RESTful APIs to real-time chat services and microservice architectures.

Before starting to develop your complex application you need to consider. Hire dedicated node.js developer who master advanced frameworks because they enable maximum framework utilization. This piece examines Node.js frameworks suitable for 2025 along with supporting evidence for their value in development. 

1. Express.js – The Classic Favorite

Express.js represents the main framework selection for Node.js developers throughout multiple years. Express.js matches the minimalist framework structure along with unopinionated design to serve applications of medium and small scale. The year of 2025 finds Express.js functioning as an established framework which supports developers needing maximum control to build their application architecture.

Why Use Express.js in 2025?

Large community and rich documentation.

Extensive middleware support.

Users find it straightforward to merge Express.js with databases while integrating it with front-end frameworks.

Hiring software developers with experience in Express.js along with knowledge of your chosen application will lead to efficient and scalable solutions in backend development.

Read more: Top software development companies in 2025

2. NestJS – Best for Scalable Enterprise Applications

NestJS became increasingly popular during recent years because it enables developers to manage complex enterprise-level applications without difficulties. The system utilizes TypeScript as its main language while implementing Angular concepts which enables front-end developers to handle it easily.

Key Features:

Modular architecture.

It includes in-built support for microservices when combined with GraphQL features.

Strong typing with TypeScript.

Organizations planning to grow swiftly and accomplish clean codebases can select NestJS as their perfect solution. Hiring developers with NodeJs expertise for NestJS applications delivers the advantage of developing applications which are both sustainable and resistant to future changes.

3. Fastify functions as a light-weight high-performance application.

Performance-driven organizations pick Fastify above other options. Security professionals recognize Fastify for accomplishing fast HTTP server operations with minimal performance weighting. Fastify provides both its essential plugin system and validate-by-schema capabilities that prepare developers to develop production-grade applications up until 2025.

What Makes Fastify Stand Out?

High throughput performance

JSON schema validation.

Fastify operates efficiently within environments dedicated to development as well as those built for production needs.

You will achieve maximum Fastify performance capabilities by hiring developers who specialize in maximizing speed and efficiency.

4. Koa.js – The Modern and Elegant Alternative

A production of the Express team has established Koa.js as a contemporary and refined way to build server-based systems. The use of ES6 generators and async/await syntax allows developers to simplify middleware control and enhance error management features.

Advantages of Using Koa in 2025:

Cleaner and more expressive code.

Great for building lightweight, modular applications.

The framework does not include built-in middleware that enables complete developer control during application development.

Businesses launching contemporary apps should use Koa.js as their lean framework choice. Developers who possess skills in both NodeJs and advanced JavaScript concepts as well as async programming principles should handle your project to maximize framework potential.

5. Sails.js – Ideal for Data-Driven Applications

Sails.js serves as an optimal selection when creating data-intensive applications that include CRM systems dashboards and APIs. Implementation of convention-over-configuration and integrated WebSockets as well as ORM capabilities are standard features of this framework.

Sails.js Highlights:

Follows MVC architecture.

Sails.js offers Waterline as its database system coupled with the ORM functionality.

Auto-generated REST APIs.

The technology serves as an excellent solution for developing scalable backend systems which suits both startups and large enterprises in need of quick system expansion. Qualitatively superior applications result from experienced Sails.js developers who work to cut development periods while maintaining exceptional output quality.

6. AdonisJS – The Laravel of Node.js

Users commonly refer to AdonisJS as Node.js's Laravel equivalent because it provides complete full-stack features along with a framework that emphasizes certain conventions during development as well as command-line enhancement tools. A fully featured backend solution emerges from the package set by AdonisJS which includes routing together with middleware authentication and ORM support.

Why AdonisJS is Rising in 2025:

Full-stack development capabilities.

Through its built-in functions the platform provides complete authentication capabilities together with data validation features.

TypeScript by default for type safety.

Conducting application development that requires complex features such as authentication and payments and real-time functionality necessitates expert NodeJs developers who have experience with AdonisJS for creating secure and maintainable code bases.

Choosing the Right Framework in 2025

Each Node.js framework has its strengths and ideal use cases. Here’s a quick comparison to help you decide:

No matter which framework you choose, success depends on the expertise of your development team. When you hire experienced software developers, you ensure your application is built using best practices and industry standards.

Final Thoughts

Node.js developers in 2025 will find a wide selection of frameworks which address different development requirements across APIs that focus on performance to full-scale backend solutions. The selection of proper framework constitutes an essential step yet its implementation success depends heavily on qualified personnel.

The ideal moment to hire experts who deeply understand modern frameworks for application development now exists since your project requires robust and scalable code. The combination of suitable tools with proper teams will enable your upcoming project to reach remarkable achievement levels all the way to 2025.

[codewithtls]

Complete Full Stack Developer Roadmap 2025 – Learn Frontend, Backend & More

Becoming a successful full-stack developer in 2025 requires mastering both front-end and back-end technologies, along with understanding how they work together.

Whether you're a beginner or an experienced developer looking to upskill, the Full Stack Developer Roadmap 2025 is your guide to mastering the entire development lifecycle.

At Code with TLS, we’ve designed this comprehensive roadmap to help you navigate your journey towards becoming a proficient full stack developer in 2025.

1. Start with Core Web Fundamentals

Before diving into complex tools, ensure you have a solid foundation:

HTML5: Learn to structure web pages effectively and use semantic HTML.

CSS3: Master layout techniques like Flexbox and Grid, and understand responsive design for mobile-first development.

JavaScript (ES6+): Focus on core concepts like variables, loops, functions, objects, and event handling. Learn asynchronous programming with promises, callbacks, and async/await.

These technologies are the backbone of every web project, and mastering them will set you up for success in full stack development.

2. Front-End Development

Once you’re comfortable with the basics, it’s time to dive into front-end frameworks:

React.js: One of the most popular JavaScript libraries for building dynamic, reusable components and UIs.

Next.js: A React-based framework that offers features like server-side rendering and static site generation, which are essential for building modern, high-performance applications.

Tailwind CSS: A utility-first CSS framework that allows for rapid UI development and customization.

These tools will help you build sleek, interactive user interfaces and handle client-side logic efficiently.

3. Back-End Development

For back-end development, learn how to create APIs, manage databases, and implement server-side logic:

Node.js with Express.js: A JavaScript-based stack that allows you to use the same language for both front-end and back-end.

Python with Flask or Django: Excellent choices for beginners and developers looking for scalability.

Java with Spring Boot: Ideal for large-scale, enterprise-level applications.

Mastering back-end development involves understanding RESTful APIs, authentication, and connecting to databases.

4. Databases and Storage

Learn to manage data with both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases. Understand how to create, read, update, and delete data efficiently while ensuring data security and scalability.

5. Deployment & DevOps

To become a well-rounded full stack developer, you must know how to deploy and maintain applications. Learn Docker for containerization, set up CI/CD pipelines for automated testing and deployment, and deploy apps to cloud platforms like AWS or Heroku.

Conclusion

By following this Complete Full Stack Developer Roadmap 2025, you’ll be equipped with the skills needed to build modern, scalable web applications.

At Code with TLS, we provide hands-on projects and expert guidance to ensure you stay up-to-date with the latest technologies and become job-ready in 2025.

[dishadeshmukh]

How to Become a Lead MERN/MEAN Stack Developer in 2 Years?

Introduction 

The tech industry is buzzing with opportunities, and becoming a lead MERN or MEAN stack developer is a goal many aspiring coders aim for. These roles combine creativity with problem-solving, offering a rewarding career path. Whether you’re starting from scratch or looking to level up, this guide provides a clear roadmap to help you grow into a lead developer within two years. With dedication and the right approach, you can master the skills needed to lead projects and teams in this exciting field.

What Is a MERN/MEAN Stack Developer?  

A MERN or MEAN stack developer is a full-stack professional who builds web applications from front to back. The MERN stack combines MongoDB, Express.js, React, and Node.js, while the MEAN stack is almost identical but swaps out React for Angular. These stacks allow developers to create dynamic, scalable websites and apps using JavaScript across the entire process. As a lead developer, you’ll not only code but also guide teams, make key decisions, and ensure projects run smoothly.

MERN vs MEAN: What’s the Difference?  

MERN and MEAN mainly differ in the front-end technology they use. MERN uses React, which is popular for its flexibility and component-based structure. MEAN uses Angular, known for its robust features and two-way data binding. Both stacks rely on MongoDB for databases, Express.js for server-side logic, and Node.js for runtime. Your choice depends on the project needs or personal preference, but learning either can set you up for success.

Core Skills You Need to Become a MEAN/MERN Stack Developer  

To stand out, sharpen your technical skills and polish your soft skills. Understanding JavaScript is essential, as it’s the backbone of both stacks. You’ll also need to grasp front-end and back-end concepts, database management, and version control. Beyond coding, communication, teamwork, and problem-solving are vital for leading projects effectively.

Step-by-Step Plan to Become a Lead Developer in 2 Years  

Month 1–6: Learn the Basics of Web Development   Start with the fundamentals: HTML, CSS, and JavaScript. These form the foundation of web development. Focus on creating simple webpages, styling them, and adding interactivity. Get comfortable with how the web works, including browsers and basic server concepts. This stage builds the groundwork for everything else.

Month 7–12: Focus on JavaScript, Node.js, and Frameworks   Dive deeper into JavaScript, mastering its advanced features like promises and async functions. Start with Node.js to manage server-side operations, and then dive into Express.js for creating APIs efficiently. Develop simple applications to reinforce what you’ve learned.

Month 13–18: Build Real Projects and Practice Daily   Shift to hands-on work. Create full-stack projects like a to-do app, blog platform, or e-commerce site. Experiment with MongoDB to store data and connect front-end and back-end. Consistent practice sharpens your skills and prepares you for complex challenges.

Month 19–24: Lead Projects and Improve Soft Skills   Take on leadership roles in group projects or mentor beginners. Refine your ability to explain ideas, manage timelines, and solve team issues. Polish your code quality and learn to review others’ work. By now, you should feel confident directing a development process.

Key Tools and Technologies to Learn  

Front-End   Master React or Angular for dynamic interfaces. Learn CSS frameworks like Bootstrap for faster styling. Understanding state management (Redux for React or services in Angular) is also key.

Back-End   Get familiar with Node.js and Express.js to handle server logic and APIs. Focus on building efficient, secure systems.

Databases   Learn MongoDB for storing and retrieving data. Understand basic queries and schema design for smooth integration.

Version Control   Use Git and platforms like GitHub to track changes and collaborate with others. It’s a must-have skill in any team setting.

Deployment Tools   Explore tools like Heroku, Vercel, or AWS to launch your apps online. Knowing deployment basics boosts your credibility.

Common Mistakes to Avoid  

Skipping the Basics   Rushing past HTML, CSS, or JavaScript fundamentals can leave gaps that haunt you later. Take time to master them.

Jumping Between Tutorials   Sticking to one learning path prevents confusion. Constantly switching resources wastes time and muddles your progress.

Not Writing Clean Code   Messy code slows down projects and frustrates teams. Focus on readability and structure from the start.

How to Practice and Build Experience?  

Build Projects on Your Own   Create apps that interest you, like a weather tracker or chat tool. Personal projects showcase your skills to employers.

Contribute to Open Source   Join GitHub projects to collaborate with others. It’s a great way to learn real-world coding practices.

Join Online Communities   Engage in forums like Stack Overflow or Reddit. Sharing knowledge and asking questions boosts your growth.

How to Prepare for Job Interviews?  

Common Interview Topics   Expect questions on JavaScript, frameworks, and problem-solving. Be ready to explain your projects and coding choices.

Tips to Stand Out   Show enthusiasm, ask smart questions, and highlight teamwork experience. Confidence and clarity make a difference.

Practice with Mock Interviews   Simulate interviews with friends or online platforms. It builds comfort with technical and behavioral questions.

Why Choose SkillonIT to Become a Lead MERN/MEAN Developer?  

Hands-on Learning from Day One   SkillonIT emphasizes practical coding over theory. You’ll start building projects right away, gaining real skills fast.

Structured Roadmaps and Practice Plans   Follow clear, step-by-step guides designed to keep you on track. It simplifies your journey to leadership.

Guidance from Industry Developers   Learn from pros who’ve been in the field. Their insights help you avoid pitfalls and grow quicker.

Interview Prep Support and Feedback   Get ready for job hunts with practice sessions and tips. SkillonIT ensures you’re confident and polished.

Conclusion  

Becoming a lead MERN or MEAN stack developer in two years is achievable with focus and effort. Start with the basics, master the stack, build projects, and develop leadership skills. With the right tools and guidance like what SkillonIT offers you’ll be ready to take on lead roles and shape the future of web development. Start Your MERN/MEAN Stack Developer Journey with SkillonIT Now!

[sathcreation]

Full Stack Web Development Coaching at Gritty Tech

Master Full Stack Development with Gritty Tech

If you're looking to build a high-demand career in web development, Gritty Tech's Full Stack Web Development Coaching is the ultimate solution. Designed for beginners, intermediates, and even experienced coders wanting to upskill, our program offers intensive, hands-on training. You will master both front-end and back-end development, preparing you to create complete web applications from scratch For More…

At Gritty Tech, we believe in practical learning. That means you'll not only absorb theory but also work on real-world projects, collaborate in teams, and build a strong portfolio that impresses employers.

Why Choose Gritty Tech for Full Stack Coaching?

Gritty Tech stands out because of our commitment to excellence, personalized mentorship, and career-oriented approach. Here's why you should choose us:

Expert Instructors: Our trainers are seasoned professionals from leading tech companies.

Project-Based Learning: You build real applications, not just toy examples.

Career Support: Resume workshops, interview preparation, and networking events.

Flexible Learning: Evening, weekend, and self-paced options are available.

Community: Join a vibrant community of developers and alumni.

What is Full Stack Web Development?

Full Stack Web Development refers to the creation of both the front-end (client-side) and back-end (server-side) portions of a web application. A full stack developer handles everything from designing user interfaces to managing servers and databases.

Front-End Development

Front-end development focuses on what users see and interact with. It involves technologies like:

HTML5 for structuring web content.

CSS3 for designing responsive and visually appealing layouts.

JavaScript for adding interactivity.

Frameworks like React, Angular, and Vue.js for building scalable web applications.

Back-End Development

Back-end development deals with the server-side, databases, and application logic. Key technologies include:

Node.js, Python (Django/Flask), Ruby on Rails, or Java (Spring Boot) for server-side programming.

Databases like MySQL, MongoDB, and PostgreSQL to store and retrieve data.

RESTful APIs and GraphQL for communication between client and server.

Full Stack Tools and DevOps

Version Control: Git and GitHub.

Deployment: AWS, Heroku, Netlify.

Containers: Docker.

CI/CD Pipelines: Jenkins, GitLab CI.

Gritty Tech Full Stack Coaching Curriculum

Our curriculum is carefully crafted to cover everything a full stack developer needs to know:

1. Introduction to Web Development

Understanding the internet and how web applications work.

Setting up your development environment.

Introduction to Git and GitHub.

2. Front-End Development Mastery

HTML & Semantic HTML: Best practices for accessibility.

CSS & Responsive Design: Media queries, Flexbox, Grid.

JavaScript Fundamentals: Variables, functions, objects, and DOM manipulation.

Modern JavaScript (ES6+): Arrow functions, promises, async/await.

Front-End Frameworks: Deep dive into React.js.

3. Back-End Development Essentials

Node.js & Express.js: Setting up a server, building APIs.

Database Management: CRUD operations with MongoDB.

Authentication & Authorization: JWT, OAuth.

API Integration: Consuming third-party APIs.

4. Advanced Topics

Microservices Architecture: Basics of building distributed systems.

GraphQL: Modern alternative to REST APIs.

Web Security: Preventing common vulnerabilities (XSS, CSRF, SQL Injection).

Performance Optimization: Caching, lazy loading, code splitting.

5. DevOps and Deployment

CI/CD Fundamentals: Automating deployments.

Cloud Services: Hosting apps on AWS, DigitalOcean.

Monitoring & Maintenance: Tools like New Relic and Datadog.

6. Soft Skills and Career Coaching

Resume writing for developers.

Building an impressive LinkedIn profile.

Preparing for technical interviews.

Negotiating job offers.

Real-World Projects You'll Build

At Gritty Tech, you won't just learn; you'll build. Here are some example projects:

E-commerce Website: A full stack shopping platform.

Social Media App: Create a mini version of Instagram.

Task Manager API: Backend API to handle user tasks with authentication.

Real-Time Chat Application: WebSocket-based chat system.

Each project is reviewed by mentors, and feedback is provided to ensure continuous improvement.

Personalized Mentorship and Live Sessions

Our coaching includes one-on-one mentorship to guide you through challenges. Weekly live sessions provide deeper dives into complex topics and allow real-time Q&A. Mentors assist with debugging, architectural decisions, and performance improvements.

Tools and Technologies You Will Master

Languages: HTML, CSS, JavaScript, Python, SQL.

Front-End Libraries/Frameworks: React, Bootstrap, TailwindCSS.

Back-End Technologies: Node.js, Express.js, MongoDB.

Version Control: Git, GitHub.

Deployment: Heroku, AWS, Vercel.

Other Tools: Postman, Figma (for UI design basics).

Student Success Stories

Thousands of students have successfully transitioned into tech roles through Gritty Tech. Some notable success stories:

Amit, from a sales job to Front-End Developer at a tech startup within 6 months.

Priya, a stay-at-home mom, built a portfolio and landed a full stack developer role.

Rahul, a mechanical engineer, became a software engineer at a Fortune 500 company.

Who Should Join This Coaching Program?

This coaching is ideal for:

Beginners with no coding experience.

Working professionals looking to switch careers.

Students wanting to learn industry-relevant skills.

Entrepreneurs building their tech startups.

If you are motivated to learn, dedicated to practice, and open to feedback, Gritty Tech is the right place for you.

Career Support at Gritty Tech

At Gritty Tech, our relationship doesn’t end when you finish the course. We help you land your first job through:

Mock interviews.

Technical assessments.

Building an impressive project portfolio.

Alumni referrals and job placement assistance.

Certifications

After completing the program, you will receive a Full Stack Web Developer Certification from Gritty Tech. This certification is highly respected in the tech industry and will boost your resume significantly.

Flexible Payment Plans

Gritty Tech offers affordable payment plans to make education accessible to everyone. Options include:

Monthly Installments.

Pay After Placement (Income Share Agreement).

Early Bird Discounts.

How to Enroll

Enrolling is easy! Visit Gritty Tech Website and sign up for the Full Stack Web Development Coaching program. Our admissions team will guide you through the next steps.

Frequently Asked Questions (FAQ)

How long does the Full Stack Web Development Coaching at Gritty Tech take?

The program typically spans 6 to 9 months depending on your chosen pace (full-time or part-time).

Do I need any prerequisites?

No prior coding experience is required. We start from the basics and gradually move to advanced topics.

What job roles can I apply for after completing the program?

You can apply for roles like:

Front-End Developer

Back-End Developer

Full Stack Developer

Web Application Developer

Software Engineer

Is there any placement guarantee?

While we don't offer "guaranteed placement," our career services team works tirelessly to help you land a job by providing job referrals, mock interviews, and resume building sessions.

Can I learn at my own pace?

Absolutely. We offer both live cohort-based batches and self-paced learning tracks.

Ready to kickstart your tech career? Join Gritty Tech's Full Stack Web Development Coaching today and transform your future. Visit grittytech.com to learn more and enroll!

[this-week-in-rust]

This Week in Rust 534

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @ThisWeekInRust on Twitter or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Updates from Rust Community

Official

Announcing Rust 1.76.0

This Development-cycle in Cargo: 1.77

Project/Tooling Updates

zbus 4.0 released. zbus is a pure Rust D-Bus crate. The new version brings a more ergonomic and safer API. Release: zbus4

This Month in Rust OSDev: January 2024

Rerun 0.13 - real-time kHz time series in a multimodal visualizer

egui 0.26 - Text selection in labels

Hello, Selium! Yet another streaming platform, but easier

Observations/Thoughts

Which red is your function?

Porting libyaml to Safe Rust: Some Thoughts

Design safe collection API with compile-time reference stability in Rust

Cross compiling Rust to win32

Modular: Mojo vs. Rust: is Mojo 🔥 faster than Rust 🦀 ?

Extending Rust's Effect System

Allocation-free decoding with traits and high-ranked trait bounds

Cross-Compiling Your Project in Rust

Kind: Our Rust library that provides zero-cost, type-safe identifiers

Performance Roulette: The Luck of Code Alignment

Too dangerous for C++

Building an Uptime Monitor in Rust

Box Plots at the Olympics

Rust in Production: Interview with FOSSA

Performance Pitfalls of Async Function Pointers (and Why It Might Not Matter)

Error management in Rust, and libs that support it

Finishing Turborepo's migration from Go to Rust

Rust: Reading a file line by line while being mindful of RAM usage

Why Rust? It's the safe choice

[video] Rust 1.76.0: 73 highlights in 24 minutes!

Rust Walkthroughs

Rust/C++ Interop Part 1 - Just the Basics

Rust/C++ Interop Part 2 - CMake

Speeding up data analysis with Rayon and Rust

Calling Rust FFI libraries from Go

Write a simple TCP chat server in Rust

[video] Google Oauth with GraphQL API written in Rust - part 1. Registration mutation.

Miscellaneous

The book "Asynchronous Programming in Rust" is released

January 2024 Rust Jobs Report

Chasing a bug in a SAT solver

Rust for hardware vendors

[audio] How To Secure Your Audio Code Using Rust With Chase Kanipe

[audio] Tweede Golf - Rust in Production Podcast

[video] RustConf 2023

[video] Decrusting the tracing crate

Crate of the Week

This week's crate is microflow, a robust and efficient TinyML inference engine for embedded systems.

Thanks to matteocarnelos for the self-suggestion!

Please submit your suggestions and votes for next week!

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

* Hyperswitch - [FEATURE]: Setup code coverage for local tests & CI * Hyperswitch - [FEATURE]: Have get_required_value to use ValidationError in OptionExt

If you are a Rust project owner and are looking for contributors, please submit tasks here.

CFP - Speakers

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

Devoxx PL 2024 | CFP closes 2024-03-01 | Krakow, Poland | Event date: 2024-06-19 - 2024-06-21

RustFest Zürich 2024 CFP closes 2024-03-31 | Zürich, Switzerland | Event date: 2024-06-19 - 2024-06-24

If you are an event organizer hoping to expand the reach of your event, please submit a link to the submission website through a PR to TWiR.

Updates from the Rust Project

466 pull requests were merged in the last week

add armv8r-none-eabihf target for the Cortex-R52

add lahfsahf and prfchw target feature

check_consts: fix duplicate errors, make importance consistent

interpret/write_discriminant: when encoding niched variant, ensure the stored value matches

large_assignments: Allow moves into functions

pattern_analysis: gather up place-relevant info

pattern_analysis: track usefulness without interior mutability

account for non-overlapping unmet trait bounds in suggestion

account for unbounded type param receiver in suggestions

add support for custom JSON targets when using build-std

add unstable -Z direct-access-external-data cmdline flag for rustc

allow restricted trait impls under #[allow_internal_unstable(min_specialization)]

always check the result of pthread_mutex_lock

avoid ICE in drop recursion check in case of invalid drop impls

avoid a collection and iteration on empty passes

avoid accessing the HIR in the happy path of coherent_trait

bail out of drop elaboration when encountering error types

build DebugInfo for async closures

check that the ABI of the instance we are inlining is correct

clean inlined type alias with correct param-env

continue to borrowck even if there were previous errors

coverage: split out counter increment sites from BCB node/edge counters

create try_new function for ThinBox

deduplicate tcx.instance_mir(instance) calls in try_instance_mir

don't expect early-bound region to be local when reporting errors in RPITIT well-formedness

don't skip coercions for types with errors

emit a diagnostic for invalid target options

emit more specific diagnostics when enums fail to cast with as

encode coroutine_for_closure for foreign crates

exhaustiveness: prefer "0..MAX not covered" to "_ not covered"

fix ICE for deref coercions with type errors

fix ErrorGuaranteed unsoundness with stash/steal

fix cycle error when a static and a promoted are mutually recursive

fix more ty::Error ICEs in MIR passes

for E0223, suggest associated functions that are similar to the path

for a rigid projection, recursively look at the self type's item bounds to fix the associated_type_bounds feature

gracefully handle non-WF alias in assemble_alias_bound_candidates_recur

harmonize AsyncFn implementations, make async closures conditionally impl Fn* traits

hide impls if trait bound is proven from env

hir: make sure all HirIds have corresponding HIR Nodes

improve 'generic param from outer item' error for Self and inside static/const items

improve normalization of Pointee::Metadata

improve pretty printing for associated items in trait objects

introduce enter_forall to supercede instantiate_binder_with_placeholders

lowering unnamed fields and anonymous adt

make min_exhaustive_patterns match exhaustive_patterns better

make it so that async-fn-in-trait is compatible with a concrete future in implementation

make privacy visitor use types more (instead of HIR)

make traits / trait methods detected by the dead code lint

mark "unused binding" suggestion as maybe incorrect

match lowering: consistently lower bindings deepest-first

merge impl_polarity and impl_trait_ref queries

more internal emit diagnostics cleanups

move path implementations into sys

normalize type outlives obligations in NLL for new solver

print image input file and checksum in CI only

print kind of coroutine closure

properly handle async block and async fn in if exprs without else

provide more suggestions on invalid equality where bounds

record coroutine kind in coroutine generics

remove some unchecked_claim_error_was_emitted calls

resolve: unload speculatively resolved crates before freezing cstore

rework support for async closures; allow them to return futures that borrow from the closure's captures

static mut: allow mutable reference to arbitrary types, not just slices and arrays

stop bailing out from compilation just because there were incoherent traits

suggest [tail @ ..] on [..tail] and [...tail] where tail is unresolved

suggest less bug-prone construction of Duration in docs

suggest name value cfg when only value is used for check-cfg

suggest pattern tests when modifying exhaustiveness

suggest turning if let into irrefutable let if appropriate

suppress suggestions in derive macro

take empty where bounds into account when suggesting predicates

toggle assert_unsafe_precondition in codegen instead of expansion

turn the "no saved object file in work product" ICE into a translatable fatal error

warn on references casting to bigger memory layout

unstably allow constants to refer to statics and read from immutable statics

use the same mir-opt bless targets on all platforms

enable MIR JumpThreading by default

fix mir pass ICE in the presence of other errors

miri: fix ICE with symbolic alignment check on extern static

miri: implement the mmap64 foreign item

prevent running some code if it is already in the map

A trait's local impls are trivially coherent if there are no impls

use ensure when the result of the query is not needed beyond its Resultness

implement SystemTime for UEFI

implement sys/thread for UEFI

core/time: avoid divisions in Duration::new

core: add Duration constructors

make NonZero constructors generic

reconstify Add

replace pthread RwLock with custom implementation

simd intrinsics: add simd_shuffle_generic and other missing intrinsics

cargo: test-support: remove special case for $message_type

cargo: don't add the new package to workspace.members if there is no existing workspace in Cargo.toml

cargo: enable edition migration for 2024

cargo: feat: add hint for adding members to workspace

cargo: fix confusing error messages for sparse index replaced source

cargo: fix: don't duplicate comments when editing TOML

cargo: relax a test to permit warnings to be emitted, too

rustdoc: Correctly generate path for non-local items in source code pages

bindgen: add target mappings for riscv64imac and riscv32imafc

bindgen: feat: add headers option

clippy: mem_replace_with_default No longer triggers on unused expression

clippy: similar_names: don't raise if the first character is different

clippy: to_string_trait_impl: avoid linting if the impl is a specialization

clippy: unconditional_recursion: compare by Tys instead of DefIds

clippy: don't allow derive macros to silence disallowed_macros

clippy: don't lint incompatible_msrv in test code

clippy: extend NONMINIMAL_BOOL lint

clippy: fix broken URL in Lint Configuration

clippy: fix false positive in redundant_type_annotations lint

clippy: add autofixes for unnecessary_fallible_conversions

clippy: fix: ICE when array index exceeds usize

clippy: refactor implied_bounds_in_impls lint

clippy: return Some from walk_to_expr_usage more

clippy: stop linting blocks_in_conditions on match with weird attr macro case

rust-analyzer: abstract more over ItemTreeLoc-like structs

rust-analyzer: better error message for when proc-macros have not yet been built

rust-analyzer: add "unnecessary else" diagnostic and fix

rust-analyzer: add break and return postfix keyword completions

rust-analyzer: add diagnostic with fix to replace trailing return <val>; with <val>

rust-analyzer: add incorrect case diagnostics for traits and their associated items

rust-analyzer: allow cargo check to run on only the current package

rust-analyzer: completion list suggests constructor like & builder methods first

rust-analyzer: improve support for ignored proc macros

rust-analyzer: introduce term search to rust-analyzer

rust-analyzer: create UnindexedProject notification to be sent to the client

rust-analyzer: substitute $saved_file in custom check commands

rust-analyzer: fix incorrect inlining of functions that come from MBE macros

rust-analyzer: waker_getters tracking issue from 87021 for 96992

rust-analyzer: fix macro transcriber emitting incorrect lifetime tokens

rust-analyzer: fix target layout fetching

rust-analyzer: fix tuple structs not rendering visibility in their fields

rust-analyzer: highlight rustdoc

rust-analyzer: preserve where clause when builtin derive

rust-analyzer: recover from missing argument in call expressions

rust-analyzer: remove unnecessary .as_ref() in generate getter assist

rust-analyzer: validate literals in proc-macro-srv FreeFunctions::literal_from_str

rust-analyzer: implement literal_from_str for proc macro server

rust-analyzer: implement convert to guarded return assist for let statement with type that implements std::ops::Try

Rust Compiler Performance Triage

Relatively balanced results this week, with more improvements than regressions. Some of the larger regressions are not relevant, however there was a real large regression on doc builds, that was caused by a correctness fix (rustdoc was doing the wrong thing before).

Triage done by @kobzol. Revision range: 0984becf..74c3f5a1

Summary:

(instructions:u) mean range count Regressions ❌ (primary) 2.1% [0.2%, 12.0%] 44 Regressions ❌ (secondary) 5.2% [0.2%, 20.1%] 76 Improvements ✅ (primary) -0.7% [-2.4%, -0.2%] 139 Improvements ✅ (secondary) -1.3% [-3.3%, -0.3%] 86 All ❌✅ (primary) -0.1% [-2.4%, 12.0%] 183

6 Regressions, 5 Improvements, 8 Mixed; 5 of them in rollups 53 artifact comparisons made in total

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

eRFC: Iterate on and stabilize libtest's programmatic output

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

RFCs

RFC: Rust Has Provenance

Tracking Issues & PRs

Rust

[disposition: close] Implement Future for Option<F>

[disposition: merge] Tracking Issue for min_exhaustive_patterns

[disposition: merge] Make unsafe_op_in_unsafe_fn warn-by-default starting in 2024 edition

Cargo

[disposition: merge] feat: respect rust-version when generating lockfile

New and Updated RFCs

No New or Updated RFCs were created this week.

Call for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:

RFC: Checking conditional compilation at compile time

Testing steps

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Upcoming Events

Rusty Events between 2024-02-14 - 2024-03-13 💕 🦀 💕

Virtual

2024-02-15 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn

2024-02-15 | Virtual + In person (Praha, CZ) | Rust Czech Republic

Introduction and Rust in production

2024-02-19 | Virtual (Melbourne, VIC, AU)| Rust Melbourne

(Hybrid - in person & online) February 2024 Rust Melbourne Meetup - Day 1

2024-02-20 | Virtual (Melbourne, VIC, AU) | Rust Melbourne

(Hybrid - in person & online) February 2024 Rust Melbourne Meetup - Day 2

2024-02-20 | Virtual (Washington, DC, US) | Rust DC

Mid-month Rustful

2024-02-20 | Virtual | Rust for Lunch

Lunch

2024-02-21 | Virtual (Cardiff, UK) | Rust and C++ Cardiff

Rust for Rustaceans Book Club: Chapter 2 - Types

2024-02-21 | Virtual (Vancouver, BC, CA) | Vancouver Rust

Rust Study/Hack/Hang-out

2024-02-22 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup

Crafting Interpreters in Rust Collaboratively

2024-02-27 | Virtual (Dallas, TX, US) | Dallas Rust

Last Tuesday

2024-02-29 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn Meetup | Mirror: Berline.rs page

2024-02-29 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup

Surfing the Rusty Wireless Waves with the ESP32-C3 Board

2024-03-06 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2024-03-07 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup

Crafting Interpreters in Rust Collaboratively

2024-03-12 | Virtual (Dallas, TX, US) | Dallas Rust

Second Tuesday

2024-03-12 | Hybrid (Virtual + In-person) Munich, DE | Rust Munich

Rust Munich 2024 / 1 - hybrid

Asia

2024-02-17 | New Delhi, IN | Rust Delhi

Meetup #5

Europe

2024-02-15 | Copenhagen, DK | Copenhagen Rust Community

Rust Hacknight #2: Compilers

2024-02-15 | Praha, CZ - Virtual + In-person | Rust Czech Republic

Introduction and Rust in production

2024-02-21 | Lyon, FR | Rust Lyon

Rust Lyon Meetup #8

2024-02-22 | Aarhus, DK | Rust Aarhus

Rust and Talk at Partisia

2024-02-29 | Berlin, DE | Rust Berlin

Rust and Tell - Season start 2024

2024-03-12 | Munich, DE + Virtual | Rust Munich

Rust Munich 2024 / 1 - hybrid

North America

2024-02-15 | Boston, MA, US | Boston Rust Meetup

Back Bay Rust Lunch, Feb 15

2024-02-15 | Seattle, WA, US | Seattle Rust User Group

Seattle Rust User Group Meetup

2024-02-20 | New York, NY, US | Rust NYC

Rust NYC Monthly Mixer (Moved to Feb 20th)

2024-02-20 | San Francisco, CA, US | San Francisco Rust Study Group

Rust Hacking in Person

2024-02-21 | Boston, MA, US | Boston Rust Meetup

Evening Boston Rust Meetup at Microsoft, February 21

2024-02-22 | Mountain View, CA, US | Mountain View Rust Meetup

Rust Meetup at Hacker Dojo

2024-02-28 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

2024-03-07 | Mountain View, CA, US | Mountain View Rust Meetup

Rust Meetup at Hacker Dojo

Oceania

2024-02-19 | Melbourne, VIC, AU + Virtual | Rust Melbourne

(Hybrid - in person & online) February 2024 Rust Melbourne Meetup - Day 1

2024-02-20 | Melbourne, VIC, AU + Virtual | Rust Melbourne

(Hybrid - in person & online) February 2024 Rust Melbourne Meetup - Day 2

2024-02-27 | Canberra, ACT, AU | Canberra Rust User Group

February Meetup

2024-02-27 | Sydney, NSW, AU | Rust Sydney

🦀 spire ⚡ & Quick

2024-03-05 | Auckland, NZ | Rust AKL

Rust AKL: Introduction to Embedded Rust + The State of Rust UI

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

For some weird reason the Elixir Discord community has a distinct lack of programmer-socks-wearing queer furries, at least compared to Rust, or even most other tech-y Discord servers I’ve seen. It caused some weird cognitive dissonance. Why do I feel vaguely strange hanging out online with all these kind, knowledgeable, friendly and compassionate techbro’s? Then I see a name I recognized from elsewhere and my hindbrain goes “oh thank gods, I know for a fact she’s actually a snow leopard in her free time”. Okay, this nitpick is firmly tongue-in-cheek, but the Rust user-base continues to be a fascinating case study in how many weirdos you can get together in one place when you very explicitly say it’s ok to be a weirdo.

– SimonHeath on the alopex Wiki's ElixirNitpicks page

Thanks to Brian Kung for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, andrewpollack, U007D, kolharsam, joelmarcey, mariannegoldin, bennyvasquez.

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[patent-registration-services]

      MERN Full Stack Training: Your Path to Web Development Success

The MERN stack consists of MongoDB, Express.js, React.js, and Node.js, forming a complete technology stack that enables developers to build dynamic and scalable web applications. Enrolling in a mern full stack developer course program is the perfect way to gain expertise in this powerful technology stack. 

Understanding the MERN Stack

The MERN stack is a JavaScript-based framework that allows developers to handle both frontend and backend development efficiently. 

MongoDB:  A flexible NoSQL database used to store data in a document-based format. 

Node.js: A runtime environment that enables JavaScript to run on the server side, making full-stack development seamless. 

MERN Full Stack Course: Main Modules

1. JavaScript Fundamentals and ES6+ Concepts

A strong foundation in JavaScript is essential for working with the MERN stack. The mern full stack developer course in ameerpet starts with: 

JavaScript syntax and functions 

ES6+ features such as destructuring, arrow functions, and template literals 

Asynchronous programming with promises and async/await 

2. Backend Development with Node.js and Express.js

The full stack mern training in ameerpet covers backend development using Node.js and Express.js, including: 

Setting up a Node.js environment 

Creating RESTful APIs with Express.js 

Middleware functions and routing 

4. Frontend Development with React.js

A full stack mern online course in ameerpet teaches how to build dynamic frontends with React.js, covering: 

React components, props, and state management 

Handling user input and events 

Managing application state with Context API and Redux 

5. Connecting the Frontend and Backend

A key skill taught in a mern stack web development online course in ameerpet is integrating the frontend with the backend, including: 

Making API calls to fetch and display data 

Implementing authentication and authorization 

Managing user sessions and role-based access control 

Why Choose a MERN Full Stack Course?

JavaScript-Based Full-Stack Development

By learning the MERN stack, developers can build both frontend and backend applications using a single programming language—JavaScript. 

Scalable and Efficient Applications

Web applications built with the MERN stack are scalable and perform efficiently under high loads. 

Practical Learning Approach

The best mern classroom course in ameerpet and full stack mern online training in ameerpet programs focus on hands-on learning, enabling students to work on real-world projects. 

Where to Enroll in the Best MERN Stack Course Online?

If you’re looking for the best mern classroom training in ameerpet or an online training option, many institutes offer: 

Live instructor-led classes 

Self-paced courses with recorded sessions 

Real-world projects for hands-on experience 

Placement assistance and industry-recognized certifications 

The combination of MongoDB, Express.js, React.js, and Node.js allows developers to create modern, high-performance applications. Whether you choose a full stack mern online training in ameerpet program or an in-person classroom course, mastering the MERN stack will open doors to exciting career opportunities in the tech industry.

[gloriousfestgentlemen02]

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```markdown

SEO backlink analysis scripts TG@yuantou2048

SEO Backlink Analysis Scripts

Backlinks are a crucial component of search engine optimization (SEO). They help in improving a website's visibility and ranking on search engines. Analyzing these backlinks can provide valuable insights into how well your site is performing and where improvements can be made. Here are some useful scripts for conducting a thorough backlink analysis:

1. Python Script for Backlink Analysis

Installation

First, ensure you have Python installed on your system. You can install the necessary libraries using pip:

```bash

pip install requests beautifulsoup4 pandas

```

Code Example

Here’s a basic script to fetch and analyze backlinks using Python:

```python

import requests

from bs4 import BeautifulSoup

import pandas as pd

def get_backlinks(url):

response = requests.get(url)

soup = BeautifulSoup(response.text, 'html.parser')

links = [a['href'] for a in soup.find_all('a', href=True)]

return links

url = "https://example.com"

backlinks = get_backlinks(url)

df = pd.DataFrame(backlinks, columns=['Backlink'])

print(df)

```

This script fetches all the links from a given URL and prints them out. You can expand this script to include more detailed analysis such as checking if the links are dofollow or nofollow, checking the anchor text, etc.

```python

import requests

from bs4 import BeautifulSoup

import pandas as pd

def get_backlinks(url):

response = requests.get(url)

soup = BeautifulSoup(response.text, 'html.parser')

links = [a['href'] for a in soup.find_all('a', href=True)]

df = pd.DataFrame(links, columns=['Backlink'])

print(df)

Usage

Replace `https://example.com` with the URL of the page you want to analyze. This will give you a list of all the links found on the specified webpage.

2. JavaScript for Real-time Backlink Analysis

For real-time analysis, you might use JavaScript in a browser environment or a server-side environment like Node.js. Below is a simple example using Node.js:

```javascript

const axios = require('axios');

const cheerio = require('cheerio');

async function fetchBacklinks(url) {

const { data } = await axios.get(url);

const $ = cheerio.load(html));

const links = $('a').map((i, el) => $(el).attr('href')).get();

return links;

}

fetchBacklinks('https://example.com')

.then(links => console.log(links))

.catch(err => console.error(err));

```

Conclusion

These scripts provide a starting point for analyzing backlinks. Depending on your needs, you can extend them to include more features such as checking link quality, anchor text analysis, and more. Regularly analyzing your backlinks can help maintain and improve your website's SEO performance.

Feel free to modify and expand these scripts according to your specific requirements.

```

加飞机@yuantou2048

蜘蛛池出租

谷歌霸屏

[neiljordansimon]

How to Optimize JavaScript for Faster Page Loads

JavaScript plays a critical role in modern web applications, powering everything from UI interactions to backend communication. However, poorly optimized JavaScript can significantly affect load times, especially on mobile or slow connections. As user experience and Core Web Vitals become essential SEO factors, developers and businesses are prioritizing script performance more than ever.

In this guide, we’ll explore key techniques for optimizing JavaScript, helping you reduce load time and improve responsiveness — a standard practice followed by leading JavaScript development companies.

1. Minify and Compress JavaScript Files

Minification removes unnecessary characters (like whitespace and comments) from JavaScript files, reducing file size without affecting functionality.

Use tools like:

UglifyJS

Terser

Google Closure Compiler

For additional compression, enabling Gzip or Brotli on your server ensures your JavaScript files are delivered in a smaller, compressed format.

Many top JavaScript development companies automate this process via build tools like Webpack or Gulp to streamline deployment.

2. Eliminate Unused JavaScript

Dead code or libraries that aren't being used can unnecessarily bloat your files. Audit your codebase and remove:

Unused functions or variables

Legacy plugin scripts no longer in use

Entire libraries if only a small utility is needed

Tools like Chrome DevTools or Lighthouse can help identify unused JavaScript. Expert teams at JavaScript development companies often use tree-shaking and modular design patterns to prevent this issue altogether.

3. Defer or Async JavaScript Loading

Using the defer or async attribute when loading JavaScript files ensures that scripts don’t block HTML rendering.

async loads the script asynchronously but doesn’t guarantee execution order.

defer ensures scripts run after the HTML is parsed, in the correct order.

Example:

html

CopyEdit

<script src="main.js" defer></script>

Strategically applying this across third-party and custom scripts can dramatically reduce render-blocking behavior.

4. Bundle and Split JavaScript Code

Bundling reduces HTTP requests by combining JavaScript files, while code-splitting ensures users only load the code necessary for the current page.

Modern bundlers like Webpack, Parcel, and Vite allow smart code-splitting. This technique is widely adopted by top JavaScript development companies to deliver faster, leaner applications across multiple devices.

5. Use a CDN to Deliver JavaScript

Content Delivery Networks (CDNs) distribute JavaScript files across geographically diverse servers. This reduces latency by serving users from the nearest server, improving load speed.

Additionally, shared libraries like React or jQuery served via CDN are often already cached in users' browsers from previous visits to other sites.

6. Optimize Third-Party Scripts

Analytics, chatbots, marketing trackers — these third-party scripts often run outside your control but significantly impact performance.

To optimize:

Load them after critical content.

Use tag managers with built-in performance settings.

Monitor their impact using performance tools.

Top-performing JavaScript development companies routinely audit these integrations to strike a balance between functionality and performance.

7. Avoid Inline JavaScript and DOM Manipulation on Load

Minimize inline scripts and avoid extensive DOM manipulation during initial page load. Inline scripts block rendering and increase Time to Interactive (TTI).

Instead:

Use event listeners that trigger after page load.

Use frameworks or vanilla JavaScript for efficient DOM handling.

8. Lazy Load Non-Essential Features

Don’t load everything upfront. Features like sliders, comment sections, or offscreen widgets can be loaded when needed.

Lazy loading reduces initial bundle size and allows faster first-paint experiences — a principle JavaScript development companies implement when building modern SPAs or PWA platforms.

9. Monitor and Continuously Improve

Use performance monitoring tools like:

Google Lighthouse

WebPageTest

SpeedCurve

Chrome DevTools

Regular audits and performance reviews help maintain a fast experience. Leading JavaScript development companies often integrate these tools into their CI/CD pipelines for consistent speed checks.

Conclusion

JavaScript optimization isn’t just about performance—it’s about user experience, SEO, and long-term scalability. Whether you’re building a single-page app or a high-traffic eCommerce platform, faster scripts lead to happier users and better conversions.

By implementing these strategies, your development workflow can align with the performance standards set by the top JavaScript development companies worldwide. Investing in optimization is not only beneficial — it's essential in today’s digital environment.