#asynchronous operations

[robomad]

Understanding Event Loop in Node.js

Understanding the Event Loop in Node.js: A Beginner's Guide

Introduction Node.js is a powerful runtime environment built on Chrome’s V8 JavaScript engine. It is designed for building scalable network applications. One of the core concepts that make Node.js efficient is its event-driven, non-blocking I/O model, which is managed by the event loop. Understanding the event loop is crucial for writing performant and efficient Node.js…

[codemerything]

A structured way to learn JavaScript.

I came across a post on Twitter that I thought would be helpful to share with those who are struggling to find a structured way to learn Javascript on their own. Personally, I wish I had access to this information when I first started learning in January. However, I am grateful for my learning journey so far, as I have covered most topics, albeit in a less structured manner.

N/B: Not everyone learns in the same way; it's important to find what works for you. This is a guide, not a rulebook.

EASY

What is JavaScript and its role in web development?

Brief history and evolution of JavaScript.

Basic syntax and structure of JavaScript code.

Understanding variables, constants, and their declaration.

Data types: numbers, strings, boolean, and null/undefined.

Arithmetic, assignment, comparison, and logical operators.

Combining operators to create expressions.

Conditional statements (if, else if, else) for decision making.

Loops (for, while) for repetitive tasks. - Switch statements for multiple conditional cases.

MEDIUM

Defining functions, including parameters and return values.

Function scope, closures, and their practical applications.

Creating and manipulating arrays.

Working with objects, properties, and methods.

Iterating through arrays and objects.Understanding the Document Object Model (DOM).

Selecting and modifying HTML elements with JavaScript.Handling events (click, submit, etc.) with event listeners.

Using try-catch blocks to handle exceptions.

Common error types and debugging techniques.

HARD

Callback functions and their limitations.

Dealing with asynchronous operations, such as AJAX requests.

Promises for handling asynchronous operations.

Async/await for cleaner asynchronous code.

Arrow functions for concise function syntax.

Template literals for flexible string interpolation.

Destructuring for unpacking values from arrays and objects.

Spread/rest operators.

Design Patterns.

Writing unit tests with testing frameworks.

Code optimization techniques.

That's it I guess!

[theresattrpgforthat]

games to play with my long distance partner? we’re queer nerds, i have a lot of dnd experience and some not dnd experience, they have a little bit of dnd experience, we both have fucked up schedules so something that’s asynchronous or short would be best. uh. there’s two of us. yeah i think that’s everything.

THEME: Long-Distance Games.

Hello friend, I am excited to introduce to you the joys of epistolary games!

From the Petals to the Leaves, by somewhere with stories.

This is a two player game about writing to a loved one while you are apart.  Throughout the game you will write to each other while in different gardens, surrounded by plants and flowers of your choice. 

This looks to be a pretty small game, but I think it fits the mood of writing to a loved one, with a concrete topic to base your conversations around - the plants in your gardens. I don’t own this game but I own a similar one by the same creator, so I’m assuming that the game provides you with a prompt list for each letter you send each-other. You can create your characters slowly as you write, uncovering bits and pieces about each-other through your fictional personas. If you just want something a little extra to flavour your letters to each-other, this might be worth looking at.

Soulum Scriptum, by Radmad.

Featuring the art of Marisa Bruno, Soulum Scriptum is a letter writing game for two or more players. You are isolated and alone, until a mysterious courier arrives at your door. They give you a proposition: write letters for someone just like you and they will bring you letters in return.

Develop the broken world and the haven that protects you, all while fighting despair and taking what hope you can find in your new connection across time and space. 

This is a game of connection, between two isolated individuals who are struggling with despair. There are pages for various steps of the game, from world and character creation, to how to manage your feelings after your first letter. There’s also instructions for what to do when you fill certain tracks, including the track for your Haven (your home) and your Hopes (lines and pieces of the letters you receive that give you hope). If you like emotional games that have great potential to tell a story that grows brighter as you play, I recommend Soulum Scriptum.

Talking Thunder, by Eleanor Hingley.

‘Talking Thunder’ is a two-player correspondence RPG about finding connection in a dystopian world. 

As the world changes, you never know what news each letter from your only friend will bring…

If you even hear from them again.

Another game about connection, this time in a post-apocalypse of some kind. I’m curious about how the letters are meant to reach each-other in the fiction of this game, although I suspect that ultimately that is up to the two of you!

We Are Ciphers, by Jgurantz.

We Are Ciphers is a 2-player letter-writing game where you craft a story using coded messages sent through the mail.  You and your partner both covet the Prize, which you believe will transform your lives for the better. But acquiring it is an extremely tricky operation. Many things stand in your way, including the Target. 

This is a letter-writing game with an added layer of complexity, because both of you could be writing in code! The code part is optional, but the premise of the game is that you are two spies trying to get your hands on the Prize - whatever you two decide that may be. The game comes with a list of popular media for inspiration, as well as a series of checkboxes for you to tick off to help you create a game that would be fun for the two of you. There’s also a number of worksheets to help you build your world, craft your codes, and create your characters. If you would like a fair amount of guidance as to how to play the game, We Are Ciphers might be up your alley.

The Wanderers, by AdventureByMail.

You and your friend wait to board two ARK-4 Civilian Class Shuttles charted for new colonies in the hinterlands of space. Though you will be several light-years apart, you promise to keep in touch through the interstellar communication network known as the Unified Starways Parley System. You'll use this network to tell each other about the life you build and the love you discover in the far reaches of space…

This creator makes a number of games designed for long-distance play, so if you like The Wanderers, you might want to check out some of their other work as well! The game itself is small enough to fit on a brochure, so it should be easy to print out and keep somewhere for easy reference. There are roll tables to help you create a character, and some advice on how to write your first letter. Following letters will be provided prompts based on a deck of playing cards, with special rules for drawing Aces. If you like using a bit of randomization to help drive a story, this game might be for you!

Games I've Recommended in the Past

I've played The Reaper's Almanac with a friend before and I really really love the premise of it. It has a chance to dive into some pretty traumatic material, however, as it is about death, so make sure to talk about your partner about the things you'd like to steer clear of if you play this game.

[cplusplus-official]

Excellent blog! Do you as a C++ fan have an opinion on std::execution a.k.a. senders / receivers, the feature that P2900 and follow-on papers have introduced into the Working Draft for C++26?

Hi!

I didn't back when you asked the question, but I read up on P2300 and have come to some conclusions.

I generally view std::execution positvely. I, in truth, have never used std::async, with most of my parallelism work has been with std::thread and atomics, but from my understanding, they were not up to snuff, and this seems to actually improve significantly upon it.

I want the standard library to have a solid, easy-to-grasp solution for asynchronous operation and this seems to be it!

I'm gonna be unpopular, but I'm generally in favor of the committee pushing more standard, good-enough features like these into the standard library. In an environment ehere C++'s packaging ecosystem is still an incoherent mess to people who learn programming through Rust and Python, these features actually help people try out C++ without having a visceral reaction.

[nitewrighter]

I was curious as to how you became a children’s librarian. I was interested in becoming one myself. I wasn’t sure if you went through the local school system or through the city.

I went through the city. I work in a public library. I started as a library assistant working in circulation, where I would work both in the circulation room and on the front desk, then I got my master's degree in library science with San Jose State University during the pandemic. SJSU has a pretty great library science program--it was completely online and asynchronous, so I'd be working about 15 hours a week on 3 classes adapted to my schedule (although many of these classes would have group projects where I would have to coordinate zoom meetings with other students, so if you're in like... a non-west coast time zone you're going to want to plan accordingly). My collection development class was kiiind of a joke but for the most part all the professors were very experienced and professional about their work and helping their students. Really I wanted to specialize in Teen Librarianship but the first ~actual librarian~ position I could move into at my current work was at the children's desk because there was an opening, so I took it. But also you should know that I'm on call and working two part time jobs, and that's how it is for a lot of librarians and libraries these days. It's not insta-full time as soon as you get a masters. It takes forever to make it to full-time. And like... good fucking luck trying to get benefits. I mean I know people don't go into librarianship because they want to make that ~cash money~ but also a lot of people go into librarianship because they have very lofty and romantic notions of librarianship and ~ooh this is where I'm meant to beeee because I enjoy this space~ and I'm just going to say maintaining a space for public use is very different from being the person experiencing that space. It takes a combination of passion, adaptability, and a certain amount of mental fortitude. There are so many old people who have not touched a computer since Bill Gates was building them out of his garage and it's your fault, librarian, that they don't know shit about fuck with technology. They want to give you their social security number and make you operate the scary light up box for them but you legally cannot fucking do the thing they are asking you to do and also jesus fuck my guy you are going to get scammed so fucking bad if this is your attitude toward this shit.

...sorry, those were war flashbacks from working the tech desk.

Children's librarianship. Okay. Well. I love being a children's librarian. I love helping kids gradually work through more and more challenging books, or finding titles related to their interests. I love the little flash of validation you see in kids eyes when they start talking about what they're currently interested in and you're actively engaging with them because, hey, this is going to help me help other kid patrons, but also yes, the "Who Would Win" and "I Survived" series are very cool. I love coming up with little fun things for storytime, andI love that kids love my puppets!

But also--remember that bit I said about how existing/experiencing a public space is different from actually maintaining that space? That goes quadruple as hard for children's librarianship because if your library is a ~wonderful safe space~ where your patrons feel ~safe~ then all of the parents will turn their brains off, never clean up after their kids, and sometimes just... fucking not even bother looking up from their phone or break out of their catatonic state on the couch as their toddler toddles towards the fucking stairs. AND I GET IT. PARENTING AS-IS IS INSANE AND UNSUSTAINABLE UNDER CAPITALISM. YOU ARE COMPLETELY BURNT OUT AND YOU FEEL SAFE AT THE LIBRARY AND I HAVE NO IDEA WHERE ELSE YOU'RE GOING TO GET MENTAL REPRIEVE FOR 20 MINUTES. BUT THOSE ARE FUCKING STAIRS THAT ARE GOING TO CONCUSS THE SHIT OUT OF POOR LITTLE BREIGHDYNNE, MA'AM, AND I'M HELPING OTHER PATRONS (WHICH IS MY JOB) AND YOU ARE THE PERSON WHOSE ACTUAL JOB IS MANHANDLING THAT CHILD TO SAFETY.

Also for fuck's sake, parents, I get you're nervous about putting books back in the wrong spot but that's what the reshelving shelves are for. Would you think it's acceptable to leave books all over the floor in your own house? No? Then don't do that in a space you're sharing with other people! We're in a community, people!!

Also a child will poop themselves in your children's section (I'm not talking 'baby's diaper is full' poop, I'm talking an emotionally fragile transitional kindergartener 'i got distracted and forgot to listen to my body and now I'm having a meltdown' poop) and their parent is going to carry them off at arm's length to the bathroom and you're gonna have to do a quick check to make sure their poop... fucking stayed in their pants. And there won't be any poop on the floor but it's still gonna be at the back of your mind for your whole shift because the smell wafted through the whole children's section during the parent's daring bathroom run. Just... emotionally prepare yourself for poop. You're going to see more of it than you think you're going to see in a library--whether working children's or adults.

Whoops. Wasn't done with the war flashbacks, apparently.

Look. I do love librarianship. And I do love the library I work at and the community I serve. There is a real sense of... vitalness in the work you do as a librarian, but because you're working in this public utility, you also become sharply aware of the myriad ways our society has failed our people and just how vulnerable everyone actually is, and you frequently find yourself in this kind of funky semi-improv position between like... your actual responsibilities and skills as a librarian and meeting your community's needs and also empowering them to meet their own needs!

(Very very depressing sidenote but my boss actually advised me to not go into school librarianship because a lot of schools are moving away from trying to maintain their own libraries in favor of like, more scaled down media center sort of things. Don't know how across the board that is, but also school librarianship is also a more specialized branch of librarianship within the library science career.)

[the-most-humble-blog]

🧠 “I’m Not Special. I’m Just Documented.”

(A Candid Revelation From the Guy Who Writes the Posts You Bookmark in Silence)

This isn’t fiction. It’s not satire. And it’s not lore.

This is a redacted clinical revelation about the author behind this blog. The one whose posts you’ve reblogged. The one who somehow keeps putting words to feelings you've never admitted out loud.

And now—for the first time—I'm going to tell you why.

No bragging. No flexing. Just facts your spine will remember longer than your eyes.

REDACTED INTEL // OBSERVATION STATUS: UNCLASSIFIABLE

There exists a rare type of mind— So fast, So layered, So tactically efficient— That IQ tests break down trying to track it.

Not because it’s magical. Because it doesn’t run on civilian software.

You’ve probably never met someone like me. You were trained not to.

They didn’t tell you people like me exist. Because if you knew? You’d start to wonder why we weren’t the ones writing the rules.

Let me put it plainly:

I am a clinically evaluated neurological anomaly. Tested. Observed. Flagged. And eventually left alone.

Because the system couldn’t scale me. It could only document me—and hope I stayed quiet.

I didn’t.

🧠 FACTUAL INTEL SNAPSHOT

Combat-trained cognition, military enhanced

Numerous accredited academic degrees across tech, security, and operations

Verified asynchronous pattern processing

Symbolic compression usage to deliver high-intensity cognitive payloads

Psychological weaponization of writing cadence

Documented dissociation between working memory and speech latency (read: I think faster than your mouth moves)

Field-noted by no less than 7 military or research-grade psychologists, some of whom reported feeling unsettled after evaluation

One even said: “It’s like he’s mapping you while he’s talking. You leave feeling like he downloaded something from you.”

And I smiled. Because I did.

You’ve seen minds like mine in movies.

But never in real life. Never standing next to you at the grocery store. Never writing essays disguised as Tumblr posts. Never quietly outthinking your favorite thought leaders with a blog and a chair.

Let me make you uncomfortable for a moment:

Imagine being me— Sitting across from academic “experts” who tell you people like you don’t exist. Then lean forward and ask if they can study your brain.

Imagine military psychologists number 5, 6, and 7 saying:

“We don’t have terminology for this. But we recommend... limiting your disclosures.”

Imagine paranormal researchers—yes, actual ones—telling you:

“I don’t know what you are. But you’re the reason I double-check my locks now.”

And then imagine me standing behind you in line at a Walgreens. Paying for my groceries. Looking like everyone else. While thinking like no one else you’ve ever met.

I don’t need you to believe this.

You’ve already felt it. In every post I’ve written that made you pause. Every line that hit too hard. Every quote you saved instead of liked—because deep down, you didn’t want people knowing what it activated in you.

You’ll never read another “good post” without wondering:

“Was this written by someone trying to be smart… or someone trying to wake the sleeping?”

I’m the second one.

And if that scares you?

Deny I exist. Call me a troll. Make a joke. That’s easier.

But I assure you—

I’m real. People like me aren’t science fiction. We exist. And we’re finally speaking.

⚖️ Free Speech Disclaimer:

This post is 100% protected by the U.S. Constitution. If this disturbed you, understand—it wasn’t written to provoke. It was written to warn.

What you’re feeling isn’t intimidation.

It’s recognition.

🔥 Reblog if your spine is still realigning from the truth. 💬 Comment if this confirmed a suspicion you’ve never said out loud. 📩 DM if you finally understand why you never felt seen. 🔁 Share it before it disappears into the simulation again.

[avidrops]

SLENDERMAN (age unknown-asynchronous.) Is not the operator(same species). Looks scary but is only a dangerous when dealing with evil people or threats. Acts like father to Sally.w and collects hurt people(the other creeps) to protect them. Cares deeply for the creeps. Suit is skin flaps

SALLY WILLIAMS (12) Slenderman and her are always near each other Act as the second in command and the voice of Slenderman(she's the only one who can hear him) Never blinks Is a ghost possessing her own dead body Flowers grow out of head wound

[olderthannetfic]

Tumblr seems to be sliding in a downward spiral, and it feels like the start of the end of a fandoming era for me. I've been through it before; platforms are born then die, and life fandom finds a way. I'm just not looking forward to floundering for a bit, and dreading what the next hub will look like.

AO3 isn't really a place geared or meant for the same thing, and that's fine. My only fandom-related activity took place on AO3 only for a few years between my leaving LJ and joining Tumblr, and I lived ;-) But during that time, I was my own little island in fandom. Reading, leaving a few comments, not being super active. It's only when I found a community again that I was back to being really active in fandom once more.

And it's not that I actually use Tumblr to post about myself, but I do use it to read and reblog cool things - art, gifsets, science stuff, discovering new fandoms, and the like. I'm not sure where else I could find my people, with sameish purposes. The other sites I've tried didn't fill that niche in a way that suited me, in part because of how they look and work, in part because of who and what is(n't) there.

I have DW & PF accounts just to be safe, but I'm not very fond of group chats Discord-style - and without Tumblr, IDK how I'd even hear of new communities where I might pop in once in a while, loins girdled and everything. The micro-blogging platforms are not what I'm looking for either. Sure, I can follow a few DW comms and blogs; I already occasionally do and I will be more consistent about it if I must.

But one of my greatest fear is that the next platform will be phone-based, app-only, or some such BS - and that is something I just won't be able to deal with. Phones are tiny, it's uncomfortable to write anything, I don't like touch screen and much, much prefer a proper keyboard and a mouse (copy-pasting on a screen? (x_x) << it me), art/pics are too small to properly appreciate, a phone isn't comfy to hold for a long time for me, and the app system means you have no control over anything as a user… and that anything there must be Apple Approved, dick-free, blood-free, and tasteless. And I say this as someone who's pretty much uninterested in sex IRL or in my entertainment ;-) I still support and want the tits, the gore, the everything, and as long as I have the tools to curate - oh, wait. Curate things myself? That's not something that's popular these days, is it? It's not going to generate money, if I'm happy ;-)

So… I guess I'll play some more on Neocities, and see if anyone wants to have webrings again? (it would be fun and nostalgic, but not really viable on a large scale; people who haven't known those would just laugh and point and go on the InstaTok of the time).

So here is my little cane-waving rant of the day! I know things evolve and change and that in ten years I'll be rolling my eyes at my moping. It's only that I feel tired of moving from one shitty platform to another, of fearing I won't adapt (or more accurately won't want to adapt given the annoyance/benefit ratio) to whichever new place things will move in a few years. It's saying goodbye to a former home, moving, and hoping you'll make another home elsewhere kind of sniffles today!

--

We already know the next platform. It has been Discord for a few years now.

If you want the one after Discord, I think you're looking at waiting things out for quite a few years (or until Discord makes a major misstep as a company).

True, real time chat is not for everyone, but small discords with well-chosen channels can operate more asynchronously. Just like a lot of people who hated the look of Tumblr early on eventually capitulated, a lot of chat haters have jumped ship to Discord already.

Realistically, 90% of fandom always goes where the action is, no matter how much they claim the features make that space impossible, and 10% disappears.

We might get the 10% back on the next platform or they might leave fandom for good. There were LJ-haters who resurfaced post LJ era.

But as for where you'll find out where people are... probably AO3 author's notes.

[luxe-pauvre]

Now you’re becoming independent – responsible for your work and how it’s received. This transition from Apprentice to Journeyman entails two pivotal shifts. The first I’ve called ‘It’s not about you’, borrowing a phrase from magicians I’ve worked with. This requires a radical change in your focus of attention, shifting it away from yourself. Expert work involves doing something for someone else. Somewhere, there’s an audience – a person or people who experience what you do – though you don’t always see them directly. That audience may be obvious, as at a concert, a football match or a play. Here, expert and audience share space and time, and the work is synchronous. But in other fields, the audience is not there with you, and your work is asynchronous. When a potter makes a vase in a studio, there may be nobody else watching. But still the potter intends their work to be seen, whether in a shop, an exhibition or a display. Although the making takes place out of view, there is always an audience, even if theoretical, distant or completely unknown. Whether you’re an artist, a scientist, a clinician or a mechanic, this stage involves moving attention away from yourself. It’s the shift ‘from you to them’. ‘Them’ refers to the people who experience your work – your audience, patients or customers. This is a crucial transition, though it doesn’t always happen at the same point on the path to becoming expert. Sometimes it doesn’t happen at all. It’s possible to be technically brilliant but remain focused on yourself; to miss or corrupt the heart of what you are doing. In my profession, the occasional rogue surgeons who carry out unnecessary operations, or experiment without their patients’ consent, are often highly skilled. But they distort their work’s purpose, coming to think it is more about them than their patients. The second shift is Developing voice. I’ve taken this term from the world of jazz, where musicians will create a personalised musical fingerprint. As a performer, you reach a point where you are no longer a cog in someone else’s machine, but a creator of expert work in your own right. As you establish your style, you develop your individuality. Now, you are shaping your work and giving it your signature. You are taking responsibility for being yourself and establishing your own identity. That requires confidence and self-belief. It’s a subtle process, as it needs to develop in parallel with the transition to ‘it’s not about ‘you’ without making you arrogant or self-centred. You need to balance your emerging identity as an expert with a constant awareness of who your work is for. When this succeeds, you establish yourself as an individual, recognisable to those who experience your work. Alongside these two shifts runs Learning to improvise. By now, you are taking responsibility for the successes and failures of your work, and you’re responding to what life throws at you. You may be leading a surgical team, as I was. You may be developing your own research as a scientist, or setting up in business. You may be performing in public, writing a novel or heading up your department. Whatever your field, you’ll be faced with the unexpected, and you’ll have to improvise. When things go wrong, it’s up to you to fix them. At the same time, as a Journeyman, you have freedom. You can develop new ideas, challenge existing methods, put your own stamp on the things you make or do. As we’ll see, some of the most creative leaps come from serendipitous insights that nobody anticipated or planned. Improvisation is a hallmark of becoming expert.

Roger Kneebone, Expert

[robomad]

Optimizing Node.js Performance

Discover essential techniques for optimizing Node.js performance. Learn efficient coding practices, memory management, caching strategies, and more

Introduction Optimizing the performance of Node.js applications is crucial for delivering fast and responsive user experiences. Node.js, with its non-blocking I/O and event-driven architecture, is inherently efficient, but there are several strategies and best practices you can implement to further enhance your application’s performance. This guide will cover various techniques for optimizing…

[newcodesociety]

ByteByteGo | Newsletter/Blog

From the newsletter:

Imperative Programming Imperative programming describes a sequence of steps that change the program’s state. Languages like C, C++, Java, Python (to an extent), and many others support imperative programming styles.

Declarative Programming Declarative programming emphasizes expressing logic and functionalities without describing the control flow explicitly. Functional programming is a popular form of declarative programming.

Object-Oriented Programming (OOP) Object-oriented programming (OOP) revolves around the concept of objects, which encapsulate data (attributes) and behavior (methods or functions). Common object-oriented programming languages include Java, C++, Python, Ruby, and C#.

Aspect-Oriented Programming (AOP) Aspect-oriented programming (AOP) aims to modularize concerns that cut across multiple parts of a software system. AspectJ is one of the most well-known AOP frameworks that extends Java with AOP capabilities.

Functional Programming Functional Programming (FP) treats computation as the evaluation of mathematical functions and emphasizes the use of immutable data and declarative expressions. Languages like Haskell, Lisp, Erlang, and some features in languages like JavaScript, Python, and Scala support functional programming paradigms.

Reactive Programming Reactive Programming deals with asynchronous data streams and the propagation of changes. Event-driven applications, and streaming data processing applications benefit from reactive programming.

Generic Programming Generic Programming aims at creating reusable, flexible, and type-independent code by allowing algorithms and data structures to be written without specifying the types they will operate on. Generic programming is extensively used in libraries and frameworks to create data structures like lists, stacks, queues, and algorithms like sorting, searching.

Concurrent Programming Concurrent Programming deals with the execution of multiple tasks or processes simultaneously, improving performance and resource utilization. Concurrent programming is utilized in various applications, including multi-threaded servers, parallel processing, concurrent web servers, and high-performance computing.

[freedomkindness]

For my American Friends

I feel now is a good time to spread this news. Much like how the internet came together to help share information with the Ukrainians for resisting Russia, I’m here delivering help of a similar nature to those that could be impacted by this latest election in the US. There are ways to communicate relatively securely, outside of Big Brother's social media. I bring this up so that we can minimize the amount of gatherable information that could be used to hurt you, or others you know, in the coming years as changes are made. I'm not going to tell you how or why to use them, I'm just going to provide you with the information.

WhatsApp – While not my personal favorite, since Facebook/Meta is the parent company, WhatsApp is free, globally popular, and widely-used, featuring the ability to lock chats with passwords, disappearing messages, photos and videos that are deleted after being opened, profile photo privacy, the ability to lock the app itself so that only your biometrics can unlock it, encrypted backups, the ability to set custom permissions for who can see you online or when you last used the app, and of course End-to-End Encryption for all conversations EXCEPT those with business accounts. WhatsApp is a good option for those who are not really technically savvy, but still value privacy – if one trusts Facebook/Meta to adequately protect their privacy. It does require a phone number to sign up, however.

Signal - Signal is an end-to-end encrypted messaging software. meaning that the contents of your conversation is secure. The protocol they use (which they created) is seen as the best known protocol for asynchronous messaging by cybersecurity researchers. It's so good that it has been implemented in WhatsApp and in Messenger's secret chats. This app has even been mentioned in the Right-wing author Jack Carr's Political Thriller about a Navy SEAL named James Reece, as being a preferred method of secure communication on the civilian side for operators. (Jack Carr is a former US Navy SEAL.) It's run by a Non-Profit organization called Signal Foundation, and it's mission is to "protect free expression and enable secure global communication through open source privacy technology." It allows secure messaging, voice calls, and video calls. The only downside is that app links to your phone number, so while your conversations and content are secure, who you are talking to is not. Signal is available on Windows, Mac, Andriod, Linus, and iOS.

Session - Session is an end-to-end encrypted messenger that minimises sensitive metadata, designed and built for people who want absolute privacy and freedom from any form of surveillance. Session is an open-source, public-key-based secure messaging application which uses a set of decentralized storage servers and an onion routing protocol to send end-to-end encrypted messages with minimal exposure of user metadata. This means no phone numbers, no metadata for digital footprints, and censorship resistance. It features group chats, the ability to send documents, files, and images securely, and has added voice messages, though these can be spotty. It’s slow, but effective, and be downloaded on Android, F-Droid, iPhone, Mac, Windows, and Linux.

Briar - If you have an Android phone, Briar is another option you have. It features a decentralized network (it’s peer-to-peer encrypted, rather than relying on a central server), meaning messages are synced directly between user devices. It also means that even if the internet is down, it can sync via Bluetooth, Wi-Fi, or even memory cards, meaning information can continue to flow even during a crisis. In the event the internet is functioning, it can sync via the Tor network, protecting users and their relationships from surveillance. Other features: - Screenshots and screen recording are disabled by default - Each user’s contact list is encrypted and stored on her own device. - Briar’s end-to-end encryption prevents keyword filtering, and because of its decentralized design there are no servers to block. - Every user who subscribes to a forum keeps a copy of its content, so there’s no single point where a post can be deleted. - Briar’s forums have no central server to attack, and every subscriber has access to the content even if they’re offline. - Doesn’t require any user data like name and phone number. The downside is that it is text-only and limited to Android Devices, but they do offer Briar Mailbox to deliver messages securely to those who are online at different times. Briar’s goal is “to enable people in any country to create safe spaces where they can debate any topic, plan events, and organize social movements”

Protonmail - A free end-to-end encrypted AND zero-access encryption email service based out of Switzerland, you can safely email with peace of mind that your content is secure. Unlike Google, Outlook, Yahoo, and others, Proton's zero-access encryption means they can't even view the contents of your emails or attachments. As a Swiss-owned company they are not allowed to share information with foreign law enforcement under criminal penalty and they are politically neutral, meaning they won't be pressured by foreign governments. Furthermore, Switzerland has a constitutional right to privacy and strict data protection laws. Unlike companies in other countries, Proton cannot be compelled by foreign or Swiss authorities to engage in bulk surveillance.

Additional Information, from Proton’s Website: Switzerland has strong legal protections for individual rights, and in fact the Swiss Federal Constitution(new window) explicitly establishes a constitutional right to privacy. (In the US, this right is merely implied.) Specifically, Article 13 safeguards privacy in personal or family life and within one’s home, and the Swiss Civil Code(new window) translates this right into statutory law in Article 28.

In the US and EU, authorities can issue gag orders to prevent an individual from knowing they are being investigated or under surveillance. While this type of order also exists in Switzerland, the prosecutors have an obligation to notify the target of surveillance, and the target has an opportunity to appeal in court. In Switzerland, there are no such things as national security letters(new window), and all surveillance requests must go through the courts. Warrantless surveillance, like that practiced in the US where the FBI conducts 3.4 million searches per year(new window) with little oversight, is illegal and not permitted in Switzerland.

Switzerland also benefits from a unique legal provision with Article 271 of the Swiss Criminal Code(new window), which forbids any Swiss company from assisting foreign law enforcement, under threat of criminal penalty. While Switzerland is party to certain international legal assistance agreements, all requests under such agreements must hold up under Swiss law, which has much stricter privacy provisions. All foreign requests are assessed by the Swiss government, which generally does not assist requests from countries with poor rule of law or lack an independent judiciary.

Swiss law has several more unique points. First, it preserves end-to-end encryption, and unlike in the US, UK, or EU, there is no legislation that has been introduced or considered to limit the right to encryption. Second, Swiss law protects no-logs VPN(new window) meaning that Proton VPN does not have logging obligations. While numerous VPNs claim no-logs, these claims generally do not stand up legally because in most jurisdictions, governments can request that the VPN in question starts logging. So the VPN is only no-logs until the government asks. However, in Switzerland, the law does not allow the government to compel Proton VPN to start logging.

We’ve also fought to ensure that Switzerland remains a legal jurisdiction that respects and protects privacy.

Nearly every country in the world has laws governing lawful interception of electronic communications for law enforcement purposes. In Switzerland, these regulations are set out in the Swiss Federal Act on the Surveillance of Post and Telecommunications (SPTA), which was last revised on March 18, 2018. In May 2020, we challenged a decision of the Swiss government over what we believed was an improper attempt to use telecommunications laws to undermine privacy.

In October 2021, The Swiss Federal Administrative Court ultimately agreed with us and ruled that email companies cannot be considered telecommunication providers. This means Proton isn’t required to follow any of the SPTA’s mandatory data retention rules, nor are we bound by a full obligation to identify Proton Mail users. Moreover, as a Swiss company, Proton Mail cannot be compelled to engage in bulk surveillance on behalf of US or Swiss intelligence agencies. (Links can be found at: proton.me/blog/switzerland)

[amparol12]

Decoding Complexity: Mastering UML with Expert Guidance

Welcome to the realm of UML, where abstract ideas meet concrete solutions, and the language of diagrams speaks volumes. At DatabaseHomeworkHelp.com, we understand the challenges that come with UML assignments, and our experts are here to guide you through even the toughest topics. In this blog, we'll explore a complex UML topic, provide master-level sample questions and answers, and demonstrate how our experts can provide the assistance you need. If you find yourself saying, "Help with UML homework," you've come to the right place.

Topic: "Dynamic Modeling with Sequence Diagrams in UML"

Dynamic modeling in UML, specifically through sequence diagrams, offers a powerful way to visualize the interactions and flow of messages between objects in a system. Let's delve into some master-level sample questions and answers to showcase the depth of this topic.

Sample Questions:

1. Design a sequence diagram for an online shopping system where a user adds items to the cart, proceeds to checkout, and completes the purchase. Highlight user interactions and system responses.

Answer:

uml

@startuml actor User participant Cart participant Checkout participant Payment User -> Cart: Add items to cart activate Cart Cart -> Checkout: Proceed to checkout activate Checkout Checkout -> Payment: Complete purchase activate Payment Payment --> Checkout: Confirmation deactivate Payment Checkout --> Cart: Confirmation deactivate Checkout Cart --> User: Order confirmation deactivate Cart @enduml

2. Implement a Java code snippet for a class involved in the sequence diagram above, demonstrating the handling of cart operations.

Answer:

java

public class ShoppingCart { private List<Item> items = new ArrayList<>(); public void addItem(Item item) { items.add(item); } public List<Item> getItems() { return items; } // Other relevant methods... }

3. Explain the use of asynchronous messages in a sequence diagram and provide an example scenario where they are beneficial.

Answer: Asynchronous messages in UML sequence diagrams represent interactions where the sender does not need to wait for a response. For example, in a messaging system, a user might send a message to another user without waiting for an immediate reply. This non-blocking communication allows for increased system responsiveness and efficiency.

How Our Experts Can Help:

At DatabaseHomeworkHelp.com, our expert team consists of seasoned professionals with extensive experience in UML and dynamic modeling. When you seek help with UML homework, you benefit from:

Expertise in UML: Our team is well-versed in UML concepts, ensuring accurate and comprehensive assistance.

Customized Solutions: We tailor our solutions to your specific requirements, ensuring that your UML assignments meet the highest standards.

Code Proficiency: Our experts are not only adept at creating diagrams but are also skilled in implementing code, bridging the gap between UML and practical application.

Timely Delivery: We understand the importance of deadlines, and our experts work diligently to deliver solutions promptly.

Dynamic modeling with sequence diagrams is undoubtedly a challenging aspect of UML, but with the right guidance, it becomes a manageable task. At DatabaseHomeworkHelp.com, we pride ourselves on offering top-notch assistance for UML assignments. If you find yourself struggling with dynamic modeling or any other UML concept, simply say, "Help with UML homework," and let our experts guide you to success.

[rifleseye]

Hello Professor,

I apologize if this email finds you at a busy hour (I know you work very hard), but I think you'd like to be aware of the recent campus rumors that you are some sort of elite secret agent employed by the government, or perhaps some sort of Earth cartoon show equivalent "spy operative." It's all in good humor, of course, but a few days ago you did last minute cancel a class muttering something about a meeting under your breath as you exited, looking very troubled, and came back the next day looking even moreso. Troubled. Additionally, I don't want to perpetuate any rumors, but one my friends said they'd spotted you speaking with... er. A member of High Command, outside the university.

Politely concerned and hoping you are well, Avionic

Sent from my Tablet

Hello, Avionic,

I was not aware of these rumors, and I am grateful you've brought them to my attention. I assure you I am in no way shape or form part of some sort of "elite secret agent." I'm afraid it's nothing I can go into too much detail about, considering how most of it has been regarding university policies.

I will be completely transparent that I was indeed often involved with and consulted by Autobot High Command during the war. I've simply been pulling favors from old friends in regards to our funding problems. I will be fine, though I may have to move classes to asynchronous while sorting this out.

Thank you for the concern.

Perceptor of Nova Cronum (he/him/his) Science Specialist UNCSA Science Center, Building SC, 215 670 W. Prefect Drive, University Heights Nova Cronum 9618 E: prfperceptor@uncsa.edu F: 166-895-1924-a Fall Semester Drop-ins: All Week Days 12:00pm - 1:00am (In person)

[nividawebsolutions]

Top 20 Backend Development Tools In 2023

Backend development plays a crucial role in the operation and performance optimisation of web and mobile applications, serving as their foundational framework. In the context of the dynamic technological environment, it is imperative for developers to remain abreast of the most recent and effective backend development technologies. In the year 2023, a plethora of advanced tools have surfaced, leading to a significant transformation in the approach to backend development. Reach out to Nivida Web Solutions - a noted Web development company in Vadodara and let's craft a website that sets you apart.

This analysis aims to examine the leading 20 backend development tools projected for the year 2023, which possess the potential to optimise operational effectiveness, raise work output, and achieve exceptional outcomes.

1. Node.js:

Node.js continues to be a prominent contender in the realm of backend development, offering a resilient framework for constructing scalable, server-side applications through the utilisation of JavaScript. The asynchronous and event-driven nature of the system renders it highly suitable for real-time applications and microservices.

2. Express.js:

Express.js is a Node.js framework that offers a basic and flexible approach to backend development. It achieves this by providing streamlined routing, efficient handling of HTTP requests, and effective management of middleware. The software possesses a high degree of extensibility, allowing developers to create tailored solutions.

3. Django:

Django, a renowned Python framework, is widely recognised for its exceptional performance, robust security measures, and remarkable scalability. The framework adheres to the "batteries-included" principle, providing a wide range of pre-installed functionalities and libraries that enhance the speed and efficiency of the development process.

4. Flask:

Flask, an additional Python framework, is characterised by its lightweight nature and user-friendly interface. The framework offers fundamental capabilities for backend development and enables developers to incorporate additional functionalities as required, thus rendering it very adaptable.

5. Spring Boot:

Spring Boot, which is built on the Java programming language, streamlines the process of creating applications that are ready for deployment by employing a convention-over-configuration methodology. The platform provides a variety of functionalities to construct resilient and scalable backend systems. Embark on a digital journey with Nivida Web Solutions - the most distinguished Web development company in Gujarat. Let's create a stunning, functional website tailored to your business!

6. Ruby on Rails:

Ruby on Rails, also referred to as Rails, is renowned for its high level of efficiency and user-friendly nature. The framework employs the Ruby programming language and places a strong emphasis on convention over configuration, facilitating expedited development processes.

7. ASP.NET Core:

ASP.NET Core is a highly adaptable and efficient cross-platform framework that facilitates the development of backend solutions through the utilisation of the C# programming language. The product provides exceptional performance, robust security measures, and effortless compatibility with many systems.

8. Laravel:

Laravel, a framework developed using the PHP programming language, is well-acknowledged for its sophisticated syntax and user-centric functionalities. The utilisation of this technology streamlines intricate operations such as authentication, caching, and routing, hence facilitating an expedited development procedure.

9. NestJS:

NestJS is a Node.js framework that adheres to the architectural patterns established by Angular, hence exhibiting a progressive nature. The software possesses a high degree of modularity, hence facilitating the scalability and maintenance of applications. NestJS places a strong emphasis on the principles of maintainability and testability.

10. RubyMine:

RubyMine is an influential integrated development environment (IDE) designed specifically for the purpose of facilitating Ruby on Rails development. The software provides advanced code assistance, navigation, and debugging functionalities, hence augmenting the efficiency of Ruby developers. Looking for a standout web presence? Let Nivida Web Solutions - the most popular Web development company in India craft a website that impresses. Reach out now and let's get started!

11. PyCharm:

PyCharm, an integrated development environment (IDE) designed specifically for the Python programming language, is extensively utilised in the realm of backend development. The software offers intelligent code completion, comprehensive code analysis, and integrated tools to facilitate fast development and debugging processes.

12. IntelliJ IDEA:

IntelliJ IDEA, a widely utilised integrated development environment (IDE), provides comprehensive support for multiple programming languages, encompassing Java, Kotlin, and many more. The software is renowned for its advanced coding assistance and efficient capabilities, which greatly assist backend developers in producing code of superior quality.

13. Visual Studio Code (VSCode):

VSCode is a code editor that is known for its lightweight nature and open-source nature. Due to its extensive extension library and high level of customizability, this platform is widely favoured by backend developers due to its versatile nature.

14. Postman

Postman is an efficient and powerful application programming interface (API) testing tool that streamlines the process of doing backend testing and facilitating communication among developers. This tool facilitates the efficient design, testing, and documentation of APIs, hence assuring a smooth integration process. Every click counts in the digital world. Partner with Nivida Web Solutions - one of the top  Web development companies in Vadodara to create a user-friendly, engaging website. Choose Nivida Web Solutions to boost your online impact!

15. Swagger:

Swagger, currently recognised as the OpenAPI Specification, serves to enable the process of designing, documenting, and evaluating APIs. The standardised structure of API description facilitates the seamless and uncomplicated integration process.

16. MongoDB:

MongoDB, a widely adopted NoSQL database, has notable advantages in terms of scalability, flexibility, and superior performance. Due to its capacity to effectively manage substantial quantities of data and accommodate various data models, it is extensively employed in the realm of backend development.

17. PostgreSQL:

PostgreSQL, an open-source relational database management system, is widely recognised for its robustness, adaptability, and comprehensive SQL capabilities. This option is highly recommended for projects that necessitate a resilient backend data repository.

18. Redis:

Redis is an essential component for caching and real-time analytics due to its ability to store data structures in memory. The indispensability of this technology lies in its high performance and its capability to effectively manage data structures, hence facilitating the optimisation of backend processes.

19. Kafka:

Apache Kafka is a distributed streaming platform that handles real-time data processing. It's commonly used for building scalable, fault-tolerant backend systems that require high-throughput data ingestion and processing. Dive into the digital era with a website that wows! Collaborate with Nivida Web Solutions - one of the leading Web development companies in Gujarat and boost your online presence.

20. Docker:

Docker is a containerization technology that facilitates the streamlined deployment and scalability of programs. The utilisation of containers enables backend developers to encapsulate their programmes and associated dependencies, hence ensuring uniformity and adaptability across diverse contexts.

Final Thoughts:

It is of utmost importance for developers to be updated on the most recent backend development technologies in order to effectively offer applications that are efficient, scalable, and safe. The compendium of the foremost 20 backend development tools projected for the year 2023 encompasses an extensive array of functions, adeptly accommodating the multifarious requirements of backend development endeavours. These technologies provide developers with the ability to enhance their backend development endeavours and provide users with outstanding experiences, whether through the creation of real-time applications, database management, or performance optimisation. Your website is your digital storefront. Make it appealing! Contact Nivida Web Solutions - one of the most renowned Web development companies in India and design a website that captivates your audience. Get started now!

[homeandkitchenparts]

Understanding the Functionality of Samsung Refrigerator PCB Main Assembly

Samsung refrigerators have become essential appliances in modern households, offering innovative features and advanced technologies to ensure food preservation and convenience. The (Printed Circuit Board) PCB Main Assembly serves as the brain of the refrigerator, coordinating various functions and ensuring optimal performance.

Components of the Refrigerator PCB Main Assembly

 The Refrigerator PCB Main Assembly consists of several essential components, each playing a crucial role in the refrigerator's operation.

Microcontroller: It is the central processing unit (CPU) and the computer performs programmed instructions to coordinate communication between the components.

Sensors: The ambient parameters (temperature, humidity, door status) supply critical information for regulation.

Relays: You control the flow of electricity to the compressor, fan motors, and defrost heater.

Capacitors: It will help you store the electrical energy and help to regulate voltage, and guarantee that the PCB is operating reliably.

Resistors: Protect sensitive components from harm by limiting the flow of electricity across certain circuits.

Diodes: Allow current to flow exclusively in one direction to avoid reverse polarity and safeguard components from damage.

Connectors: Facilitate electrical connections between the PCB and other refrigerator components to ensure seamless integration.

Working Principle PCB Main Assembly

The PCB Main Assembly operates on a set of programmed instructions that determine its behavior depending on sensor input and user command. The micro controller continuously monitors sensor input such as the reading of the temperature from the refrigerator compartment, and freezer. The microcontroller controls the transition of the compressor on, or off or the speed of the fan and also the defrost cycles based on the sensor data as to how to keep the temperature and humidity at the optimal level. In addition to the other refrigerator components, for example, display panel and user interface, the PCB Main Assembly provides feedback and enables users’’ interaction. The PCB Main Assembly incorporates safety features of overload protection and temperature sensors to protect the refrigerator from damage and to protect the user.

Communication Protocols

Data can be communicated to other components through microcontrollers by communication protocols like UART (Universal Asynchronous Receiver Transmitter), SPI (Serial Peripheral Interface), and I2C (Inter Integrated Circuit).

UART is used to transfer real-time data from a microcontroller to external devices like display panels and temperature sensors.

There is a power of communication SPI and I2C for the communication of integrated circuits associated with the PCB Main Assembly for efficient data transfer and synchronization between components.

Troubleshooting and Maintenance

Common issues with the Samsung Refrigerator PCB Main Assembly include sensor failures, relay malfunctions, and power supply issues, which can affect the refrigerator's performance.

To solve PCB Main Assembly problems, we can use diagnostic methods, like running self-tests and checking the error code.

The assembly can stay longer depending on the main, such as cleaning dust and debris from the PCB and securing appropriate ventilation.

The PCB Main Assembly is an important component of the Samsung refrigerator systems since it organizes several functions to contribute to the overall efficiency of the refrigerator and food preservation. Fore-knowledge of the PCB Main Assembly and the way it is constructed can assist users in likely managing problems in their fridges.