#node-module-deep-dive

[cancercarespecialties]

Is Methylene Blue Safe for Thyroid Cancer Patients? What the Best Thyroid Surgeons in UAE

Thyroid cancer is a complex and evolving medical challenge, and patients navigating this diagnosis often seek every possible advantage in their treatment journey. One name that keeps surfacing in integrative and alternative oncology discussions is methylene blue—a compound traditionally used as a dye, but now drawing attention for its potential benefits in cancer management. But when it comes to thyroid cancer specifically, is methylene blue truly safe and effective? And what are the insights from the Best Thyroid Surgeon UAE and other leading experts?

In this article, we take a deep dive into the science, clinical perspectives, and patient considerations surrounding methylene blue cancer usage, especially in the context of thyroid cancer care.

Understanding Methylene Blue: A Primer

Methylene blue has been around since the 19th century, originally used as a dye and treatment for malaria. In modern medicine, it’s utilized for treating methemoglobinemia, urinary tract infections, and even cognitive enhancement in neurodegenerative diseases.

In recent years, methylene blue has gained popularity in cancer circles due to its mitochondrial support, anti-inflammatory, and potential anti-cancer properties. Research suggests that it can interfere with cancer cell metabolism, potentially sensitizing them to conventional treatments like chemotherapy and radiation.

For a more detailed look at how methylene blue functions in cancer care, explore this expert resource on methylene blue cancer.

The Thyroid Cancer Landscape: A Quick Overview

Thyroid cancer is one of the fastest-growing cancer diagnoses globally. In the UAE, early detection and advances in thyroid surgery in Dubai have improved survival and recovery outcomes. The disease varies by type—papillary, follicular, medullary, and anaplastic—and treatment typically involves surgery, radioactive iodine therapy, and, in some cases, external beam radiation or systemic therapies.

Patients are increasingly exploring adjunct treatments that may help reduce recurrence risks, manage symptoms, and improve overall quality of life.

Methylene Blue in Thyroid Cancer: What’s the Evidence?

While methylene blue is being investigated in various cancer models, specific clinical studies on its impact in thyroid cancer are limited but growing.

Here’s what we currently know:

Cellular Metabolism Modulation: Methylene blue is known to alter mitochondrial activity in cells. Cancer cells, including thyroid cancer types, rely on altered mitochondrial dynamics. By restoring normal mitochondrial function, methylene blue may reduce cancer cell survival.

Oxidative Stress Reduction: Oxidative stress contributes to cancer progression. Methylene blue’s antioxidant properties may mitigate this risk.

Photosensitizer Use in Surgery: In thyroid surgeries, methylene blue is sometimes used as a visual marker to help surgeons identify parathyroid glands and lymph nodes more accurately. This has improved surgical precision and outcomes in some cases.

Despite promising lab and surgical applications, there’s still no robust clinical consensus recommending methylene blue as a primary or routine adjunct treatment for thyroid cancer.

What the Best Thyroid Surgeons in UAE Say

To better understand methylene blue’s practical application and safety, we spoke with experts at the Best Thyroid Surgery Center Dubai. Here’s a summary of their insights:

“We use methylene blue primarily in the operating room to visualize glands and minimize surgical risks. However, when it comes to systemic or oral use, we advise extreme caution until more large-scale, peer-reviewed studies validate its safety in cancer patients.”

Another leading voice in thyroid oncology emphasized the importance of personalized treatment plans:

“Thyroid cancer is highly treatable, and patients often fare well with surgery and standard therapies. Experimental compounds like methylene blue may hold future promise, but for now, they should not replace evidence-based interventions.”

These perspectives align with current medical guidance, which supports methylene blue's use only under supervised, context-specific scenarios.

Is It Safe for Thyroid Cancer Patients?

Safety is the primary concern—and rightfully so. While methylene blue is generally considered safe at low doses, it can cause side effects such as:

Headache

Nausea

Dizziness

Serotonin syndrome (especially if combined with antidepressants)

Discoloration of urine and other body fluids

For thyroid cancer patients, particularly those undergoing or recovering from surgery, the use of methylene blue should be strictly medical—as in surgical dye—rather than systemic, unless prescribed and monitored by a physician.

If you're interested in innovative cancer treatments that have been clinically validated, consider consulting with experts at the Best Cancer Center Dubai for guidance.

Case Example: Where Methylene Blue Helped

In a 2023 case study from a surgical hospital in Europe, methylene blue was used intraoperatively to assist a thyroid surgeon in locating difficult-to-identify parathyroid glands during a complex thyroidectomy. The result?

Reduced surgical time

Avoidance of hypoparathyroidism

Improved patient recovery

This demonstrates how methylene blue can enhance surgical precision—but does not support its use as a systemic treatment.

Alternatives to Explore

If you're looking to enhance your thyroid cancer recovery naturally or complement traditional treatment, here are safer evidence-backed alternatives:

Vitamin D Optimization: Plays a key role in immune regulation and may reduce cancer recurrence risk.

Anti-inflammatory Diet: Rich in antioxidants to support cellular repair.

Mind-Body Therapies: Meditation, yoga, and acupuncture help manage stress, which affects thyroid health.

Regular Follow-Up: Ensures any recurrence is detected early.

Second Opinions from Specialists: Always consult with a certified surgeon or oncologist. Best Thyroid Surgeon UAE offers world-class evaluations and treatment plans.

Final Verdict: Promising But Premature

The excitement around methylene blue in cancer care is understandable. It’s accessible, inexpensive, and shows compelling effects in early studies. However, when it comes to thyroid cancer patients, its role remains supportive at best and experimental at worst.

Used surgically as a visual aid? Absolutely.

Used systemically to “cure” thyroid cancer? Not yet.

Until more evidence emerges, patients are advised to stick to clinically validated treatments and work closely with leading professionals at reputable centers like the Best Cancer Center in Dubai.

Want to Learn More?

If you're exploring options for thyroid surgery or second opinions on thyroid cancer management, schedule a consultation with the Best Thyroid Surgeon UAE. For cutting-edge updates on integrative cancer care, visit our dedicated section on methylene blue benefits cancer.

Source : https://cancercarespecialities.blogspot.com/2025/04/is-methylene-blue-safe-for-thyroid.html

[cmpswanand]

System Optimization: MPSC Prep for Peak Efficiency and Recall.

"MPSC classes near me" is not just a search; it's a dive into the live data stream of bureaucratic knowledge. Chanakya Mandal Pariwar acts as a critical network node, providing aspirants with real-time access to the state's intricate logic circuits. This isn't about passive absorption; it's about active, rigorous data analysis, extracting the essential patterns and insights needed for strategic MPSC success. The quantum leap, the transformation from raw aspirant to skilled civil servant, is facilitated by Chanakya's meticulously crafted training modules, designed to optimize recall and peak efficiency. Pune's neural network, a collective of ambitious minds, is interconnected through collaborative learning, fostering a dynamic exchange of knowledge and insights. They provide access to the core code, the deep-level understanding of bureaucratic processes, enabling aspirants to wield power with precision and foresight. The classes are not just a collection of lectures, but a dynamic, evolving data stream, where information is processed, analyzed, and applied in real-time simulations.

[talentbanker1]

Unveiling the Best Node.js Certifications for Your Tech Triumph in Ahmedabad

The tech landscape buzzes with endless possibilities, and Node.js, the versatile JavaScript runtime environment, reigns supreme at the forefront of innovation. Mastering its art empowers you to craft dynamic web applications, real-time chat apps, and even scalable backend systems. But with an abundance of best node js certifications out there, navigating the options can feel like deciphering a complex algorithm.

Talent Banker: Your Node.js Powerhouse

Look no further than Talent Banker, your one-stop shop for mastering Node.js and unlocking your coding potential. Their comprehensive Node.js certification program ticks all the right boxes:

Expertly crafted curriculum: Dive deep into the latest Node.js features like Express framework, MongoDB integration, and asynchronous programming.

Passionate instructors: Learn from industry experts who are not just teachers but mentors, guiding you every step of the coding journey.

Interactive learning: Engage in live sessions, hands-on projects, and collaborative workshops to solidify your skills and build a network of fellow coders.

Career catalyst: Get personalized career guidance, resume building assistance, and access to exclusive job opportunities through Talent Banker's network of industry partners.

Why Talent Banker for  Node.js? Talent Banker is more than just a certification provider; it's a community of passionate coders. They host workshops, hackathons, and networking events, providing you with the platform to connect with like-minded individuals, share your passion, and build lifelong friendships.

Curriculum: Does the course cover the latest Node.js features and best practices? Does it offer a comprehensive understanding of core concepts like modules, event loops, and asynchronous programming?

Instructors: Are the instructors industry veterans with real-world experience? Do they have a passion for teaching and a knack for making complex concepts clear?

Learning Format: Do you prefer online self-paced learning or interactive live sessions? Does the course offer hands-on projects to solidify your understanding?

Don't let the fear of choosing the wrong path hold you back. Invest in your future with Talent Banker, the premier destination for Node.js certifications. Let's unlock your coding potential and paint the tech landscape with your brilliance!

[g-nicerf]

Deep Dive into the Core Technology and Applications of the LoRaWAN Gateway

The wireless communication landscape is vast and evolving, and at its forefront is the LoRaWAN Gateway. This key piece of technology acts as the bridge in the entire LoRaWAN network, ensuring that data can move seamlessly between devices, cloud systems, and other essential infrastructure components.

At the heart of the LoRaWAN network's architecture lies the LoRaWAN Gateway. Its primary function is to capture information sent from a multitude of endpoint devices, process it, and then forward it to the network server. This mechanism ensures that data flows coherently and efficiently, minimizing losses and ensuring timely communication. What makes this even more interesting is the kind of devices the gateway interacts with. These devices, which include sensors, actuators, and other IoT components, are typically powered by a LoRaWAN module.

The LoRaWAN module's genius lies in its ability to transmit low-power signals across extensive distances. In a world where energy efficiency is paramount, having such a module aids in reducing overall power consumption, thus contributing to sustainable and long-lasting solutions. The versatility of the LoRaWAN Gateway, combined with its multi-channel capabilities, means that it can simultaneously handle signals from thousands of LoRaWAN modules. This not only boosts the network's scalability but also enhances its overall capacity, making it fit for a broader range of applications.

The rise of the Internet of Things (IoT) has further accelerated the demand for the LoRaWAN Gateway. As more devices come online, the need for reliable, secure, and long-range communication platforms becomes evident. LoRaWAN technology, with its unique blend of long-range transmission capabilities, low power requirements, and robust security features, positions itself as the ideal solution for this growing demand. Recognizing the potential and the requirements of the current market, industry leaders are now focusing more on the development and production of even more efficient and reliable LoRaWAN modules.

Moreover, as industries evolve, there's an increasing emphasis on real-time data collection, analytics, and smart decision-making. The LoRaWAN Gateway, with its enhanced data processing capabilities, becomes a crucial player in this scenario. It not only facilitates the collection of data but also ensures that it is forwarded to the necessary systems for analysis and subsequent actions.

In wrapping up, the role of the LoRaWAN Gateway in today's wireless communication networks is more significant than ever, particularly in the context of IoT applications. As the world becomes more interconnected and reliant on real-time data, investing in understanding, developing, and integrating LoRaWAN Gateways and associated LoRaWAN modules will be the cornerstone for any company or individual aiming for success in the wireless communication domain.

For details, please click： https://www.nicerf.com/collection/lorawan-gateway-and-node

                        Or click：https://www.alibaba.com/product-detail/G-NiceRF-High-Power-Front-End_1600914259171.html?spm=a2747.manage.0.0.29ed71d2fPp5Ld

For consultation, please contact NiceRF (Email: sales@nicerf.com).

[c2x-technologies-pvt-ltd]

React Native Developer: Building Cross-Platform Mobile Apps with Ease

Introduction

In today's digital age, mobile apps have become an integral part of our lives. Businesses and individuals alike are looking to create robust and user-friendly mobile applications. One technology that has gained immense popularity in recent years for app development is React Native. In this article, we will explore the world of React Native development and what it takes to become a proficient React Native developer.

What is React Native?

React Native is an open-source mobile app development framework created by Facebook. It allows developers to build cross-platform mobile applications using JavaScript and React.js. Unlike traditional native app development, where separate codebases are required for Android and iOS, React Native enables developers to write code once and use it for both platforms.

Why Choose React Native for Mobile App Development?

Cross-Platform Development

One of the primary reasons to choose React Native is its ability to build cross-platform applications. This means that developers can use the same codebase to create apps for both Android and iOS, reducing development time and effort significantly.

Reusable Components

React Native offers a component-based architecture, where each part of the user interface is treated as a separate component. These components can be reused across the app, leading to faster development and easier maintenance.

Fast Development Cycle

With its hot reloading feature, React Native allows developers to see the changes made in the code almost instantly on the emulator or physical device. This rapid development cycle enhances productivity and speeds up the testing process.

Third-Party Plugin Support

React Native has a vast community of developers contributing third-party plugins and libraries, which can be easily integrated into the app. This extensibility allows developers to add various functionalities without starting from scratch.

Skills Required for a React Native Developer

To become a proficient React Native developer, one must possess the following skills:

Proficiency in JavaScript

Since React Native development relies heavily on JavaScript, a deep understanding of the language is crucial. Developers should be comfortable with ES6 syntax and asynchronous programming.

Understanding of React.js

React Native is an extension of React.js, so familiarity with React.js concepts like state, props, and components is necessary for effective development.

Familiarity with Mobile App Development Concepts

Knowledge of mobile app development fundamentals, such as UI/UX design, handling user inputs, and managing app states, is essential for creating functional and user-friendly apps.

Knowledge of Native Modules and APIs

Though React Native provides a vast range of built-in components, developers may need to access native modules and APIs for specific functionalities. Understanding how to bridge native code with JavaScript is valuable.

Setting Up the Development Environment

Before diving into React Native development, it is essential to set up the development environment:

Installing Node.js and NPM

Node.js and NPM (Node Package Manager) are essential for running and managing React Native projects.

Installing React Native CLI

The React Native Command Line Interface (CLI) is used for creating and managing React Native projects.

Creating a New Project

With the development environment set up, developers can create a new React Native project using the CLI.

Getting Started with React Native

Once the project is set up, it's time to get familiar with React Native's core concepts:

Components and JSX

In React Native, everything is a component. Understanding JSX (JavaScript XML) syntax is crucial for creating these components.

Styling in React Native

React Native uses Flexbox for layout design, making it essential for developers to grasp styling concepts.

State and Props

State and props are fundamental concepts in React Native, allowing developers to manage dynamic data within the app.

Building a Basic React Native App

Now that the basics are covered, developers can start building a basic React Native app:

Creating a Home Screen

The home screen serves as the entry point of the app, and developers can design it with various components.

Adding Navigation

Implementing navigation allows users to move between different screens of the app seamlessly.

Implementing Functionalities

Developers can add functionalities like user authentication, data fetching, and more to make the app interactive and useful.

Debugging and Testing

Effective debugging and testing are essential for delivering a high-quality app:

Debugging React Native Apps

React Native provides various tools for debugging, making it easier to identify and fix issues.

Unit Testing

Writing unit tests ensures that each component and functionality of the app works as expected.

UI Testing

UI testing helps in verifying if the app's user interface behaves correctly under different scenarios.

Publishing the App

With the app development completed, it's time to prepare it for release:

Preparing for Release

Several steps, such as generating app icons, configuring app settings, and creating release builds, are necessary before submitting the app to app stores.

Uploading to App Stores

The final step involves uploading the app to Google Play Store and Apple App Store for users to download and use.

Advanced Topics in React Native

For developers looking to enhance their skills, some advanced topics include:

Native Modules and Integrations

Learning to integrate native modules allows developers to access native device features and enhance app capabilities.

Performance Optimization

Optimizing app performance ensures smooth and efficient operation on various devices.

Handling Push Notifications

Implementing push notifications keeps users informed and engaged with the app.

Staying Updated with React Native

As a React Native developer, staying updated with the latest developments is essential:

Official Documentation and Community

The official documentation and the vast React Native community serve as valuable resources for learning and troubleshooting.

Attending Conferences and Meetups

Participating in conferences and meetups provides opportunities to network, learn from experts, and stay up-to-date with industry trends.

Conclusion

React Native has revolutionized mobile app development by enabling developers to build powerful cross-platform applications with ease. Aspiring React Native developers should focus on mastering JavaScript, React.js, and mobile app development concepts to create innovative and user-friendly mobile apps.

Unique FAQs

Q: Can I use React Native for existing native apps?

A: Yes, you can integrate React Native components into existing native apps gradually to leverage its benefits while preserving your existing codebase.

Q: Is React Native suitable for complex apps?

A: Absolutely! React Native is capable of handling complex apps, and with proper optimization, it can deliver excellent performance.

Q: Can I use third-party plugins in my React Native app?

A: Yes, React Native has a rich ecosystem of third-party plugins and libraries that can be easily integrated into your app to add various functionalities.

Q: Does React Native support offline app development?

A: Yes, React Native supports offline development, and you can use various libraries to store data locally and synchronize when the device is online.

Q: Can I use React Native for both iOS and Android app development on a Windows machine?

A: Yes, with React Native, you can develop for both platforms on a Windows machine, thanks to its cross-platform nature. However, to test the app on iOS devices, you would still need a macOS device or a macOS virtual machine.

[captainsafia]

Node module deep-dive: fs

Time for another Node module deep-dive!

I got some great feedback from folks that it would be interesting to dive into the C++ portions of the Node codebase in these annotated code reads. I agree. To be honest, I've avoided it up to this point mostly because of insecurities about my own knowledge of C++ and understanding about system-level software. But you know what, I am setting all that aside and diving into the C++ portions of the Node codebase because I am a brave and fearless developer.

I say this to clarify that don't take anything I say as absolute fact and if you have insights into portions of the code I misunderstood, let me know on Twitter.

Anyway, let's get down to the fun stuff.

I've been thinking a lot about the fs module. The fs module is a part of the standard library in Node that allows the developer to interact with the filesystem. You can do things like read files, write files, and check the status of files. This is very handy if you are doing something like building a desktop application using JavaScript or interacting with files in a backend server.

One of the fs functions that I use the most is the exists function, which checks to see if a file exists. This function has actually be deprecated recently in favor of fs.stat or fs.access. So with this, I figured it would be interesting to dive in and see how fs.access works in Node. Just so we are all on the same page, here is how you might use fs.access in an application.

> const fs = require('fs'); undefined > fs.access('/etc/passwd', (error) => error ? console.log('This file does not exist.') : console.log('This file exists.')); undefined > This file exists.

Neat-o! So we can pass a filename and a callback that takes an error. If the error exists then we cannot access the file but if it does not exist then we can. So let's head over to the fs module in the codebase to see what's up. The code for the fs.access function looks like this.

fs.access = function(path, mode, callback) { if (typeof mode === 'function') { callback = mode; mode = fs.F_OK; } else if (typeof callback !== 'function') { throw new errors.TypeError('ERR_INVALID_CALLBACK'); } if (handleError((path = getPathFromURL(path)), callback)) return; if (typeof path !== 'string' && !(path instanceof Buffer)) { throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'path', ['string', 'Buffer', 'URL']); } if (!nullCheck(path, callback)) return; mode = mode | 0; var req = new FSReqWrap(); req.oncomplete = makeCallback(callback); binding.access(pathModule.toNamespacedPath(path), mode, req); };

So like I mentioned before, it takes a path and a callback. It also takes a mode parameter which you can read more about here. Most of the first few lines in the function are your standard validation and safety checks. I'll avoid going into them here because I think they are pretty self-explanatory. I know it's kind of annoying when people do the hand-wavey thing about code so if you have specific questions about these lines I'm overlooking, just ask me.

The code gets a little bit more interesting once we get to the last few lines in the function.

var req = new FSReqWrap(); req.oncomplete = makeCallback(callback); binding.access(pathModule.toNamespacedPath(path), mode, req);

I've never seen this FSReqWrap object before. I assume it's some low-level API within the Node ecosystem for dealing with asynchronous requests. I tried to figure out where this Object is defined. The require statement for it looks like this.

const { FSReqWrap } = binding;

So it looks like it is extracting the FSReqWrap object from binding. But what is binding?

const binding = process.binding('fs');

Hm. So it seems to be the result of invoking process.binding with the 'fs' parameter. I've seen these process.binding calls sprinkled across the codebase but have largely avoided digging into what they are. Not today! A quick Google resulted in this StackOverflow question, which confirmed my suspicion that process.binding was how C++-level code was exposed to the JavaScript portion of the codebase. So I dug around the Node codebase to try and find where the C/C++ code for fs resided. I discovered that there were actually two different C-level source files for fs, one associated with Unix and another associated with Windows.

So I tried to see if there was anything resembling a definition for the access function in the fs C source for Unix. The word access is referenced four times in the code.

Twice here.

#define X(type, action) \ case UV_FS_ ## type: \ r = action; \ break; switch (req->fs_type) { X(ACCESS, access(req->path, req->flags));

And twice here.

int uv_fs_access(uv_loop_t* loop, uv_fs_t* req, const char* path, int flags, uv_fs_cb cb) { INIT(ACCESS); PATH; req->flags = flags; POST; }

Now you know what I meant about the whole "The C part of this code base makes me nervous" bit earlier.

I felt like the uv_fs_access was a lot easier to look into. I have no idea what is going on with that X function macro business and I don't think I'm in a zen-like state of mind to figure it out.

OK! So the uv_fs_access function seems to be passing the ACCESS constant to the INIT function macro which looks a little bit like this.

#define INIT(subtype) \ do { \ if (req == NULL) \ return -EINVAL; \ req->type = UV_FS; \ if (cb != NULL) \ uv__req_init(loop, req, UV_FS); \ req->fs_type = UV_FS_ ## subtype; \ req->result = 0; \ req->ptr = NULL; \ req->loop = loop; \ req->path = NULL; \ req->new_path = NULL; \ req->cb = cb; \ } \ while (0)

So the INIT function macro seems to be initializing the fields in some req structure. From looking at the type declarations on the function parameters of functions that took req in as an argument, I figured that req was a pointer to a uv_fs_t Object. I found some documentation that rather tersely stated that uv_fs_t was a file system request type. I guess that's all I need to know about it!

Side note: Why is this code written in a do {} while (0) instead of just a sequence of function calls. Does anyone know why this might be? Late addition: I did some Googling and found a StackOverflow post that answered this question.

OK. So once this filesystem request object has been initialized, the access function invokes the PATH macro which does the following.

#define PATH \ do { \ assert(path != NULL); \ if (cb == NULL) { \ req->path = path; \ } else { \ req->path = uv__strdup(path); \ if (req->path == NULL) { \ uv__req_unregister(loop, req); \ return -ENOMEM; \ } \ } \ } \ while (0)

Hm. So this seems to be checking to see if the path that the file system request is associated with is a valid path. If the path is invalid, it seems to unregister the loop associated with the request. I don't understand a lot of the details of this code, but my hunch is that it does validation on the filesystem request being made.

The next invocation that uv_fs_access calls is to the POST macro which has the following code associated with it.

#define POST \ do { \ if (cb != NULL) { \ uv__work_submit(loop, &req->work_req, uv__fs_work, uv__fs_done); \ return 0; \ } \ else { \ uv__fs_work(&req->work_req); \ return req->result; \ } \ } \ while (0)

So it looks like the POST macros actually invokes the action loop associated with the filesystem request and then executes the appropriate callbacks.

At this point, I was a little bit lost. I happened to be attending StarCon with fellow code-reading enthusiast Julia Evans. We sat together and grokked through some of the code in the uv__fs_work function which looks something like this.

static void uv__fs_work(struct uv__work* w) { int retry_on_eintr; uv_fs_t* req; ssize_t r; req = container_of(w, uv_fs_t, work_req); retry_on_eintr = !(req->fs_type == UV_FS_CLOSE); do { errno = 0; #define X(type, action) \ case UV_FS_ ## type: \ r = action; \ break; switch (req->fs_type) { X(ACCESS, access(req->path, req->flags)); X(CHMOD, chmod(req->path, req->mode)); X(CHOWN, chown(req->path, req->uid, req->gid)); X(CLOSE, close(req->file)); X(COPYFILE, uv__fs_copyfile(req)); X(FCHMOD, fchmod(req->file, req->mode)); X(FCHOWN, fchown(req->file, req->uid, req->gid)); X(FDATASYNC, uv__fs_fdatasync(req)); X(FSTAT, uv__fs_fstat(req->file, &req->statbuf)); X(FSYNC, uv__fs_fsync(req)); X(FTRUNCATE, ftruncate(req->file, req->off)); X(FUTIME, uv__fs_futime(req)); X(LSTAT, uv__fs_lstat(req->path, &req->statbuf)); X(LINK, link(req->path, req->new_path)); X(MKDIR, mkdir(req->path, req->mode)); X(MKDTEMP, uv__fs_mkdtemp(req)); X(OPEN, uv__fs_open(req)); X(READ, uv__fs_buf_iter(req, uv__fs_read)); X(SCANDIR, uv__fs_scandir(req)); X(READLINK, uv__fs_readlink(req)); X(REALPATH, uv__fs_realpath(req)); X(RENAME, rename(req->path, req->new_path)); X(RMDIR, rmdir(req->path)); X(SENDFILE, uv__fs_sendfile(req)); X(STAT, uv__fs_stat(req->path, &req->statbuf)); X(SYMLINK, symlink(req->path, req->new_path)); X(UNLINK, unlink(req->path)); X(UTIME, uv__fs_utime(req)); X(WRITE, uv__fs_buf_iter(req, uv__fs_write)); default: abort(); } #undef X } while (r == -1 && errno == EINTR && retry_on_eintr); if (r == -1) req->result = -errno; else req->result = r; if (r == 0 && (req->fs_type == UV_FS_STAT || req->fs_type == UV_FS_FSTAT || req->fs_type == UV_FS_LSTAT)) { req->ptr = &req->statbuf; } }

OK! I know this looks a little bit scary. Trust me, it scared me when I first looked at it too. One of the things that Julia and I realized was that this bit of the code.

#define X(type, action) \ case UV_FS_ ## type: \ r = action; \ break; switch (req->fs_type) { X(ACCESS, access(req->path, req->flags)); X(CHMOD, chmod(req->path, req->mode)); X(CHOWN, chown(req->path, req->uid, req->gid)); X(CLOSE, close(req->file)); X(COPYFILE, uv__fs_copyfile(req)); X(FCHMOD, fchmod(req->file, req->mode)); X(FCHOWN, fchown(req->file, req->uid, req->gid)); X(FDATASYNC, uv__fs_fdatasync(req)); X(FSTAT, uv__fs_fstat(req->file, &req->statbuf)); X(FSYNC, uv__fs_fsync(req)); X(FTRUNCATE, ftruncate(req->file, req->off)); X(FUTIME, uv__fs_futime(req)); X(LSTAT, uv__fs_lstat(req->path, &req->statbuf)); X(LINK, link(req->path, req->new_path)); X(MKDIR, mkdir(req->path, req->mode)); X(MKDTEMP, uv__fs_mkdtemp(req)); X(OPEN, uv__fs_open(req)); X(READ, uv__fs_buf_iter(req, uv__fs_read)); X(SCANDIR, uv__fs_scandir(req)); X(READLINK, uv__fs_readlink(req)); X(REALPATH, uv__fs_realpath(req)); X(RENAME, rename(req->path, req->new_path)); X(RMDIR, rmdir(req->path)); X(SENDFILE, uv__fs_sendfile(req)); X(STAT, uv__fs_stat(req->path, &req->statbuf)); X(SYMLINK, symlink(req->path, req->new_path)); X(UNLINK, unlink(req->path)); X(UTIME, uv__fs_utime(req)); X(WRITE, uv__fs_buf_iter(req, uv__fs_write)); default: abort(); } #undef X

is actually a giant switch-statement. The enigmatic looking X macro is actually syntactic sugar for the syntax for the case statement that looks like this.

case UV_FS_ ## type: \ r = action; \ break;

So, for example, this macro-function call, X(ACCESS, access(req->path, req->flags)), actually corresponds with the following expanded case statement.

case UV_FS_ACCESS: r = access(req->path, req->flags) break;

So our case statement essentially ends up calling the access function and setting its response to r. What is access? Julia helped me realized that access was a part of the system's library defined in unistd.h. So this is where Node actually interacts with system-specific APIs.

Once it has stored a result in r, the function executes the following bit of code.

if (r == -1) req->result = -errno; else req->result = r; if (r == 0 && (req->fs_type == UV_FS_STAT || req->fs_type == UV_FS_FSTAT || req->fs_type == UV_FS_LSTAT)) { req->ptr = &req->statbuf; }

So what this is basically doing is checking to see if the result that was received from invoking the system-specific APIS was valid and stores it back into that filesystem request object that I mentioned earlier. Interesting!

And that's that for this code read. I had a blast reading through the C portions of the codebase and Julia's help was especially handy. If you have any questions or want to provide clarifications on things I might have misinterpreted, let me know. Until next time!

[martinrodriquez-blog]

Azure Kubernetes Service (AKS) Free Course

What is Azure Kubernetes Service (AKS)?

Deploy and manage containerized applications more easily with a fully-managed Azure Kubernetes Service (AKS).

Azure Kubernetes Service (AKS) may be a controlled container orchestration service, maintained the open-source Kubernetes system, which is obtainable on the Microsoft Azure public cloud. Azure Kubernetes Service provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance. An organization can use AKS to deploy, scale, and handle Docker containers and container-based applications across a cluster of container hosts.

 Azure Kubernetes Service (AKS) Benefits

Azure Kubernetes Service is currently competing with both Amazon Elastic Kubernetes Service (EKS) and Google Kubernetes Engine (GKE). It offers numerous features like creating, managing, scaling, and monitoring Azure Kubernetes Clusters, which is attractive for users of Microsoft Azure. the subsequent are some benefits offered by AKS:

Efficient resource utilization: The fully managed AKS offers easy deployment and management of containerized applications with efficient resource utilization that elastically provisions additional resources without the headache of managing the Kubernetes infrastructure.

Faster application development: Developers spent most of the time on bug-fixing. AKS reduces the debugging time while handling patching, auto-upgrades, and self-healing and simplifies the container orchestration. It definitely saves tons of your time and developers will specialize in developing their apps while remaining more productive.

Security and compliance: Cybersecurity is one of the foremost important aspects of recent applications and businesses. AKS integrates with Azure Active Directory (AD) and offers on-demand access to the users to greatly reduce threats and risks. AKS is additionally completely compliant with the standards and regulatory requirements like System and Organization Controls (SOC), HIPAA, ISO, and PCI DSS.

Quicker development and integration: Azure Kubernetes Service (AKS) supports auto-upgrades, monitoring, and scaling and helps in minimizing the infrastructure maintenance that results in comparatively faster development and integration. It also supports provisioning additional computing resources in Serverless Kubernetes within seconds without fear about managing the Kubernetes infrastructure.

 Azure Kubernetes Service Use Cases: We’ll take a glance at different use cases where AKS may be used.

Migration of existing applications: you can easily migrate existing apps to containers and run them with Azure Kubernetes Service (AKS). You can also control access via Microsoft Azure AD integration and SLA-based Azure Services like Azure Database using Open Service Broker for Azure (OSBA).

Simplifying the configuration and management of microservices-based Apps: you can also simplify the development and management of microservices-based apps also as streamline load balancing, horizontal scaling, self-healing, and secret management with Azure Kubernetes Service (AKS).

Bringing DevOps and Kubernetes together: AKS is additionally a reliable resource to bring Kubernetes and DevOps together for securing DevOps implementation with Kubernetes. Bringing both together, it improves the safety and speed of the development process with Continuous Integration and Continuous Delivery (CI/CD) with dynamic policy controls.

Ease of scaling: AKS also can be applied in many other use cases like easy scaling by using Azure Container Instances (ACI) and AKS. By doing this, you can use AKS virtual node to provision pods inside Azure Container Instance (ACI) that start within a couple of seconds and enables AKS to run with required resources. If your AKS cluster is run out of resources, if will scale-out additional pods automatically with none additional servers to manage within the Kubernetes environment.

Data streaming: AKS also can be accustomed to ingest and process real-time data streams with data points via sensors and perform quick analysis.

 Azure Kubernetes Service (AKS) Deep Dive Free Course

Azure Kubernetes Service (AKS) Course will produce a whole roadmap for Docker, Kubernetes, and Azure Kubernetes Service (AKS) for those people that want to begin their journey to containerized application in Azure, cloud, and find a true deep dive with hands-on.

This course built from the bottom up. So, you can use it as a real beginner as well as advanced level.

It has several modules, lessons, and demos that cover the whole course. Moving from the very basic to very advanced topics with deep hands-on labs and demos.

The course is structured to create it very easy to navigate between modules, lessons, and demos as well as easily finding any video inside the course.

This course is obtainable in two languages, English & Arabic (عربى), so, it'll be available on both channels.

English YouTube channel

Arabic YouTube channel

[iamadevelopers]

Deep Dive Into Node.js Module Architecture ☞ https://codequs.com/p/SkLMD7OKV/deep-dive-into-node-js-module-architecture #nodejs #javascript

[opensourcefan]

Deep Dive Into Node.js Module Architecture ☞ https://codequs.com/p/SkLMD7OKV/deep-dive-into-node-js-module-architecture #nodejs #javascript

[cmpswanand]

Tap into MPSC Data Stream: Classes Nearby for Real-Time Prep.

"MPSC classes near me" is not just a search; it's a dive into the live data stream of bureaucratic knowledge. Chanakya Mandal Pariwar acts as a critical network node, providing aspirants with real-time access to the state's intricate logic circuits. This isn't about passive absorption; it's about active, rigorous data analysis, extracting the essential patterns and insights needed for strategic MPSC success. The quantum leap, the transformation from raw aspirant to skilled civil servant, is facilitated by Chanakya's meticulously crafted training modules, designed to optimize recall and peak efficiency. Pune's neural network, a collective of ambitious minds, is interconnected through collaborative learning, fostering a dynamic exchange of knowledge and insights. They provide access to the core code, the deep-level understanding of bureaucratic processes, enabling aspirants to wield power with precision and foresight. The classes are not just a collection of lectures, but a dynamic, evolving data stream, where information is processed, analyzed, and applied in real-time simulations.

[javascriptfan]

Deep Dive Into Node.js Module Architecture ☞ https://codequs.com/p/SkLMD7OKV/deep-dive-into-node-js-module-architecture #nodejs #javascript

[iamcodegeek]

Deep Dive Into Node.js Module Architecture ☞ http://on.edupioneer.net/7c00b445c8 #Node #Nodejs #Codequs #Morioh

[anapedias]

How To Get Multipurpose Room Subnautica 14

You already know what you need to do. Head down there and you’ll be able to scan the room.

How to get the Multipurpose Room in Subnautica YouTube

The two areas where you can scan a multipurpose room are on the floating island and in the mushroom caves.

How to get multipurpose room subnautica. How do you get a multipurpose room in subnautica? When i enter i start to lose oxygen. Subnautica below zero multipurpose room is a basic room in witch to install a range of different components.

Subnautica where to find multipurpose room? When the multipurpose room is “stacked” with another multipurpose room, the floors can be accessed by building ladders, or by constructing an alien containment with hatches on the levels the player wishes to be able to access. How to find multipurpose room subnautica below zero.

I am wondering how to get oxygen in the room. It is constructed with a habitat builder and can be placed on top of a foundation or on its own, forming legs if it is close enough to terrain in the latter case. The multipurpose room, however, is below that peak.

If you dont have any of these search for their fragments. Multipurpose room may refer to: One of them on the floating island, second is in the jelly shroom cave and the last one is in the deep grand reef.

When i freecam i can get inside the room, and i can see that there's a ladder that's partially constructed, and preventing me from doing anything. Select the basic compartment from the builder menu and place it somewhere opportune. If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.

Base needs power to produce oxygen. On this page you can find the item id for multipurpose room in subnautica, along with other useful information such as spawn commands and unlock codes. Get back inside using a hatch, deconstruct the partially constructed ladder and away you go.

You can find multipurpose room blueprint on top of the island. In this subnautica guide, we will be looking at the best and closest location for finding the multipurpose room. The large room has ten wall nodes on which room expansions can be built:

Op · 4y · edited 4y. How do you become a habitat builder? Select the basic compartment from the builder menu and place it somewhere opportune.

And then was able to branch out a bit when i found the multipurpose room. When the multipurpose room is stacked with another multipurpose room, the floors can be accessed by building ladders , or by constructing an alien containment with hatches on the levels the player wishes to be able to access. How do you get into the multipurpose room?

The short walls each have one, and the long walls four. The large room is a large rectangular seabase module with many times the floor space of the multipurpose room. It can be built using the habitat builder.

It needs to be scanned, so first locate one on the island that is directly right of the crashed ship. How do you become a habitat builder? When the multipurpose room is horizontally adjacent to another seabase module, a small length of corridor is automatically created to join them.

A basic room in which to install a range of different components. How to find the multipurpose room in subnautica? Where is the best place to find multipurpose room fragments subnautica?

Easiest i guess would be the floating island as you don't have to dive at all, second is the jelly cave where you need to go down to 300m which is quite easy and the enterance. The most obvious is right up atop the islands’ highest peak, which you should head over toward and scan objects like the observatory, bulkhead, spotlight, etc. The multipurpose room, however, is below that peak.

It's a heck of a lot easier than trying to get into the jelly caves early on. This is a disambiguation page, intended to distinguish between articles of similar subject or title. The multipurpose room is the crucial, starti.

How do you get into the multipurpose room? The problem i had with doing this. The most obvious is right up atop the islands’ highest peak, which you should head over toward and scan objects like the observatory, bulkhead, spotlight, etc.

Multipurpose room (subnautica) multipurpose room (below zero) Following the distress signals will eventually lead to the island in some form or fashion, where you'll get the scan. How do you get the multipurpose room in subnautica 2020?

Hatches can be built on the wall nodes. Just make sure you make a scanner fisrst. Just build my first base and my first multi purpose room.

It is constructed with a habitat builder and can be placed on top of a foundation or on its own, forming legs if it is close enough to terrain in the latter case. The two areas where you can scan a multipurpose room are on the floating island and in the mushroom caves. When the multipurpose room is horizontally adjacent to another seabase module, a small length of corridor is automatically created to join them.

The floating island is your best bet but most players face a leviathan in that location or go too far and enter the dead zone by accident. You can potentially get the multipurpose room at the start of the game but you’ll have to travel a long distance and know where to look. Multipurpose rooms and early bases hi guys, thought i'd check back in on subnautica to have a go with the prawn and noticed that i couldn't craft a multipurpose room.

You get them in any of the three abandoned sea bases. For each level i made, i had a corridor built on the side, then a hatch on top to get up on that. The multipurpose room blueprint can be acquired by scanning a multipurpose room at any of the degasi seabases.

You can scan the multipurpose room at the floating island abandoned base to learn how to build your own. They pop out from the room a small distance when. The multipurpose room blueprint can be acquired by scanning a multipurpose room at any of the degasi seabases.

When the multipurpose room is horizontally adjacent to another seabase module, a small length of corridor is automatically created to join them. Just make sure you make a scanner fisrst. How do you get into the multipurpose room?

[ricardosgamingchannel]

Subnautica Below Zero Finding the Large Room Blue Print EASY The Large Room is a large rectangular Seabase module with many times the floor space of the Multipurpose Room. It can be built using the Habitat Builder. he Large Room has ten wall nodes on which room expansions can be built: the short walls each have one, and the long walls four. Hatches can be built on the wall nodes. They pop out from the room a small distance when built. The Large Room can be expanded with other modules from its ten wall nodes. Modules other than Compartments will form a tiny corridor. If another Large Room or a Moonpool is placed parallel to the Large Room, it is possible to form a multiple connection. This Video : ➤Link: https://youtu.be/9Ic42bJsC1I ➤SUBSCRIBE FOR MORE LIKE THIS : https://bit.ly/2WItPIY :) ➤Website : https://ift.tt/38Xt2eC ➤ LinkTree https://ift.tt/2OYWFF0 Pages: Elite Dangerous: https://ift.tt/2UyRPxh BSG Deadlock : https://ift.tt/32NaBpl Subnautica : https://ift.tt/2Rgef8t Throw a coin to Ricardo : https://ift.tt/38TouWK Wanna Chat? ************** Join the discussion on Discord https://ift.tt/300TsEX WAYS TO SUPPORT THE CHANNEL ************************************ ✔️LIKE THE VIDEO ✔️SUBSCRIBE TO THE CHANNEL ✔️WATCHING THE STREAM ☕Buy me a Kofi☕ ☕☕☕☕☕☕☕☕☕☕☕☕☕☕ https://ift.tt/2XEp19P Affiliate Links: *************** **Miguel Johnson Ambient and Immersive Music** ***************************************************** https://ift.tt/2X8JejH Miguel's new Album The Explorers - Available Now! **************************************************** https://www.youtube.com/watch?v=dDEFiRZegs4&feature=youtu.be ---⏱️Timestamps⏱️--- 00:00 Subnautica below Zero Finding the Large Room Blue Print EASY 00:10 introduction to the large room in subnautica below zero 02:00 How to find the large room blue print 03:00 how to scan the large blueprint About Subnautica Below Zero +++++++++++++++++++++++ Dive into a freezing underwater adventure on an alien planet. Set one year after the original Subnautica, Below Zero challenges you to survive a disaster at an alien research station on Planet 4546B. Craft tools, scavenge for supplies and unravel the next chapter in the Subnautica story. Below Zero, the arctic-themed standalone expansion for deep-sea adventure Subnautica, is now available in early access on PC - and, to celebrate, developer UnknownWorlds has offered up the very first trailer. Described as a "new chapter" in the Subnautica saga, Below Zero unfolds one year on from the events of the base game and challenges players to survive a disaster at an alien research station, located in a previously unseen, ice-bound region of ocean planet 4546B. #Subnautica #SubnauticaBelowZero subnautica below zero laser cutter subnautica below zero sea monkey unknown worlds entertainment indie game #subnauticabelowzero #subnautica by Ricardos Gaming

[captainsafia]

Node module deep-dive: os

So, I've been reading through the Node codebase for a while now and I'm starting to get a decent good sense of how the Node main process works, how different modules work, and the interactions between the C++ and JavaScript portions of the codebase. Emphasis on the "decent" here. The Node codebase is pretty darn complex and I've been doing my best to get acquainted with it.

The being said, I figured that it would be interesting to figure out how the entire module lifecycle worked in Node by examining one of the built-in modules, os.

If you are unfamiliar with os, it is a Node module that allows the developer to get things like the system architecture or hostname. Here's an example of the outputs I got when I ran it on my personal machine.

> const os = require('os'); undefined > os.arch(); 'x64' > os.homedir(); '/Users/captainsafia' > os.hostname(); 'eniac'

Nifty, right?

You can find the JavaScript source for the os module here. I'm not actually particularly interest in reading through any functions in the JavaScript code at the moment. The one thing that I am interested in is the process.binding that binds to the module object created in the C++ portions of the code.

const { getCPUs, getFreeMem, getHomeDirectory: _getHomeDirectory, getHostname: _getHostname, getInterfaceAddresses: _getInterfaceAddresses, getLoadAvg, getOSRelease: _getOSRelease, getOSType: _getOSType, getTotalMem, getUserInfo: _getUserInfo, getUptime, isBigEndian } = process.binding('os');

From this, we can see that the object contains a lot of functions that are later invoked in parts of the public API of the os module. The first thing that I wanted to do was try and figure out where exactly the functions listed above were defined. I did some searching around the codebase and found the C++ definitions of the os functions defined here. For example, here is the definition of the GetOSType/getOSType function mentioned above.

static void GetOSType(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); const char* rval; #ifdef __POSIX__ struct utsname info; if (uname(&info) < 0) { CHECK_GE(args.Length(), 1); env->CollectExceptionInfo(args[args.Length() - 1], errno, "uname"); return args.GetReturnValue().SetUndefined(); } rval = info.sysname; #else // __MINGW32__ rval = "Windows_NT"; #endif // __POSIX__ args.GetReturnValue().Set(OneByteString(env->isolate(), rval)); }

Basically, this function uses the uname functionhttps://www.systutorials.com/docs/linux/man/1-uname/ in Unix to get information about the operating system and to extract the operating system type from it. It also has some conditional logic to evaluate whether it is running on a Unix system or a Windows system.

args.GetReturnValue().Set(OneByteString(env->isolate(), rval));

The return statement, as seen above, is not the traditional return that you might see in C++ code. I recall from a book on how to develop Native Nod extensions that I skimmed through a long-time ago, that this special return code is what allows the JavaScript portions of the codebase to have access to the returned data from the C++ module. The most interesting portion of the code is actually all the way at the bottom.

void Initialize(Local<Object> target, Local<Value> unused, Local<Context> context) { Environment* env = Environment::GetCurrent(context); env->SetMethod(target, "getHostname", GetHostname); env->SetMethod(target, "getLoadAvg", GetLoadAvg); env->SetMethod(target, "getUptime", GetUptime); env->SetMethod(target, "getTotalMem", GetTotalMemory); env->SetMethod(target, "getFreeMem", GetFreeMemory); env->SetMethod(target, "getCPUs", GetCPUInfo); env->SetMethod(target, "getOSType", GetOSType); env->SetMethod(target, "getOSRelease", GetOSRelease); env->SetMethod(target, "getInterfaceAddresses", GetInterfaceAddresses); env->SetMethod(target, "getHomeDirectory", GetHomeDirectory); env->SetMethod(target, "getUserInfo", GetUserInfo); target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "isBigEndian"), Boolean::New(env->isolate(), IsBigEndian())); } } // namespace os } // namespace node NODE_BUILTIN_MODULE_CONTEXT_AWARE(os, node::os::Initialize)

So here, it looks like we are initializing the mappings between the functions we've written on the C++ level and the names that we'll refer to them with when we are binding to the os module. The one thing I was curious about was what was going on in the NODE_BUILTIN_MODULE_CONTEXT_AWARE macro function. It looks like we are passing to it the os namespace, which contains all the functions defined in this C++ file, and the initialization function. I did some searching around the codebase and found the code for NODE_BUILTIN_MODULE_CONTEXT_AWARE here.

#define NODE_BUILTIN_MODULE_CONTEXT_AWARE(modname, regfunc) \ NODE_MODULE_CONTEXT_AWARE_CPP(modname, regfunc, nullptr, NM_F_BUILTIN)

So it looks like this macro function, invokes the NODE_MODULE_CONTEXT_AWARE_CPP macro function, which is defined in the same file and has the following definition.

#define NODE_MODULE_CONTEXT_AWARE_CPP(modname, regfunc, priv, flags) \ static node::node_module _module = { \ NODE_MODULE_VERSION, \ flags, \ nullptr, \ __FILE__, \ nullptr, \ (node::addon_context_register_func) (regfunc), \ NODE_STRINGIFY(modname), \ priv, \ nullptr \ }; \ void _register_ ## modname() { \ node_module_register(&_module); \ }

Oh! This macro function is creating that node_module struct that I discovered in the last blog post. It turns out that the registration function that is invoked when a module is registered is actually the Initialize function above which loads the function associations onto the current environments. IT'S ALL STARTING TO MAKE SENSE.

So here is the story of the lifecycle of a built-in module from what I can understand.

A collection of functions are defined under a namespace for that particular module on the C++ end of the code. For example, the GetOSType function is defined under the os namespace.

The module is registered onto the current process using a collection of macro functions. This registration involves mapping the functions defined above to a collection of names that we can use to refer to them when we extract the bindings.

The JavaScript code associated with a particular module extracts registered names for the functions from the running process using process.binding.

The functions extracted using process.binding are invoked in the functions that are exported as part of the public API in the JavaScript module. For example, the os.type() JavaScript function call ultimately relies on teh getOSType binding which refers to the GetOSType function defined in C++.

This is making sense for me so far. There are definitely some parts of it that I don't understand. Mostly, I'm curious to know what the scope of this process object is. It feels to me like the key to understanding the connections between the native C++ and the JavaScript code is getting a solid sense of what process is. Perhaps I'll dig into that at another time...

If you have any questions or feedback on this post, you can reach out to me on Twitter.

[t-baba]

Memoization, Svelte loves TypeScript, and V8 8.5

#498 — July 24, 2020

Unsubscribe  |  Read on the Web

JavaScript Weekly

Several New Features Promoted to Stage 4 at TC39 — If you’re interested in the future of JavaScript, several features have been promoted to stage 4 which, in TC39 parlance, means they are ‘finished’ and ready for inclusion in the formal ECMAScript standard. They include:

Promise.any and AggregateError

Number separator support (e.g. 1_000_000)

Weak references

Improvements to Intl.DateTimeFormat

..and more, naturally 😄

Hemanth HM

Vue 3 Now in Release Candidate Stage — The final Vue 3.0 release isn’t due till sometime next month, but the API and implementation are now considered ‘stabilized’ with no new major features or breaking changes expected. There’s also a beta of the devtools with 3.0 support and a new v3 focused documentation site. Also here's some of what's new in Vue 3.

Evan You

Learn State Machines from the Creator of XState, David Khourshid — By modeling the state in your application with state machines and statecharts, you will spend less time debugging edge cases and more time modeling complex application logic in a visually clear and robust way.

Frontend Masters sponsor

Svelte 💛 TypeScript — Svelte, a popular compile-time JavaScript framework, now supports TypeScript too. Here’s how it works and how the current approach makes a previously difficult task a lot easier.

Orta Therox

V8 Version 8.5 Now in Beta — Coming soon to a Node.js near you (not to mention Chrome 85), the latest branch of the V8 JavaScript engine boasts Promise.any, String.prototype.replaceAll (no regex needed!) and support for logical assignment operators (like ||=).

Zeynep Cankara (Google)

What The Heck Is.. Memoization? — Dan Abramov is back tackling the topic of memoization – when you can optimize a function by caching results that are ‘expensive’ (in terms of time or memory) to calculate numerous times.

Dan Abramov

⚡️ Quick bytes:

There's a new release (0.62) of React Native for Windows which supports Fast Refresh.

The proposal for records and tuples has reached stage 2 at TC39. It'd bring record (#{x:1, y:2}) and tuple (#[1, 2, 3, 4]) data structures to JavaScript.

Other things happened at the recent TC39 meeting with other proposals too!

Do you use MDN? It's celebrating its 15th birthday this week in a variety of ways 🥳

💻 Jobs

Senior Full-Stack Engineer to Join Growing Team (React, Node.js) - London or Remote — Build our mental health platform for psychedelic therapy. Core tech is evidence-based generative music for therapists, care seekers and physical spaces.

Wavepaths

Senior Front-End Systems Architect (Remote, Western Hemisphere) — Got experience architecting and implementing front-end systems? Join us (in this fully remote role) and help us define best-in-class experience managers, site generators, UI and conversation frameworks.

MyPlanet

One Application, Hundreds of Hiring Managers — Use Vettery to connect with hiring managers at startups and Fortune 500 companies. It's free for job-seekers.

Vettery

📚 Tutorials, Opinions and Stories

The Official Redux Essentials Tutorial.. Redux — A redevelopment of the basic Redux introduction that focuses on teaching you how to use the popular state container the right way with best practices. It’s practicality first and then digs into ‘how it works’ later on.

Redux Team

A Gentle Introduction to Webpack — No violence here, just why webpack exists, what problems it solves, and how to use it. Tyler has a good reputation as a teacher in the JavaScript space, so enjoy.

Tyler McGinnis

Eliminating Duplicate Objects from Arrays: Three Approaches

Dr. Axel Rauschmayer

Serverless Rendering with Cloudflare Workers — How to do server-side rendering ‘at the edge’ using Workers Sites, Wrangler, HTMLRewriter, and tools from the broader Workers platform.

Kabir Sikand

A Deep Dive Into V8 — Dive into V8's internal functioning, compilation and garbage collection processes, single-threaded nature, and more.

AppSignal sponsor

▶  New Course: Build JavaScript Applications with Node.js — Microsoft has released a video course covering Node from the very start through to setting up a project, debugging, using VS Code, and building an Express-based API.

Microsoft

An Introduction to Stimulus.js — Released by Basecamp a year or two ago now, Stimulus is a very light library to add behavior to your HTML elements without going full-on with a framework. Commonly used in the Ruby on Rails world, but worth checking out in its own right.

Mike Rogers

Your Blog Doesn’t Need a JavaScript Framework — Perhaps controversial, but, in explaining why he chose Eleventy over Gatsby, Iain argues that developers often overcomplicate sites, adding heavy frameworks where none is needed?

Iain Bean

How to Create a Dynamic Rick and Morty Wiki Web App with Next.js — A good tutorial for getting started with Next.js and deploying to Vercel by building a fun wiki site.

Colby Fayock

A Mental Model to Think in TypeScript — If you’re new to TypeScript and struggling with how to ‘think more in types.’

TK

🔧 Code & Tools

Perfect Arrows: A Minimal Way to Draw 'Perfect' Arrows Between Points and Shapes — Here’s a live demo.

Steve Ruiz

🎸 React Guitar: A Flexible 'Guitar Neck' Component for React — You’d use this to render things like chord positions, say. But, even better, you can ‘play’ it too 😁

React Guitar

Breakpoints and console.log Is the Past, Time Travel Is the Future — 15x faster JavaScript debugging than with breakpoints and console.log.

Wallaby.js sponsor

Handsontable: A Mature Data Grid That Feels Like a Spreadsheet — Somehow it’s been six years since we linked this last, but it’s still being updated and works with Vue, React, and Angular too. The only downside is it’s dual licensed, so it’s only free for evaluation or non-commercial use. GitHub repo.

Handsoncode

⚡️ Quick releases:

Node 14.6.0

Jasmine 3.6.0 — Popular testing framework.

SystemJS 6.4.0 — Dynamic ES module loader.

Commander 6.0.0 — Node command-line interfaces made easy.

ESLint 7.5.0 — The JS code problem finder and fixer.

Alpine 2.5.0 — Compose JavaScript behavior in markup.

🎨 Creative Corner

Over the past few years Elijah Manor has been penning a few frontend developer jokes. Now, he's converted one such joke into a comic strip using the TypeScript-powered Excalidraw web-tool. Take a look:

by via JavaScript Weekly https://ift.tt/30QbDPI