TypeScript 6.0 beta just dropped. This is the last version written in JavaScript before the Go rewrite in 7.0. Here's what's new: 𝗡𝗲𝘄 𝗧𝗲𝗺𝗽𝗼𝗿𝗮𝗹 𝗔𝗣𝗜 𝘁𝘆𝗽𝗲𝘀 Enable with `--target esnext` or `lib: ["esnext"]` to start using modern date/time handling. 𝗠𝗮𝗽 𝘂𝗽𝘀𝗲𝗿𝘁 𝗺𝗲𝘁𝗵𝗼𝗱𝘀 `getOrInsert` and `getOrInsertComputed` make Map operations cleaner (available in esnext lib). 𝗥𝗲𝗴𝗘𝘅𝗽.𝗲𝘀𝗰𝗮𝗽𝗲 𝗳𝗼𝗿 𝘀𝗮𝗳𝗲𝗿 𝗿𝗲𝗴𝗲𝘅 Automatically escape special characters like *, ?, + (in es2025 lib). `--𝘀𝘁𝗮𝗯𝗹𝗲𝗧𝘆𝗽𝗲𝗢𝗿𝗱𝗲𝗿𝗶𝗻𝗴` 𝗳𝗹𝗮𝗴 Helps compare type outputs between 6.0 and the upcoming 7.0, useful for migration testing (not for everyday use). The catch? That ordering flag can slow type checking by 25% in large codebases. Only use it when you need to diagnose differences. If you're on modern practices (strict mode, ES2020+, ESM), upgrading is smooth. If you're stuck on old bundlers, wait. The real win comes with 7.0. This is just the bridge. Are you upgrading to 6.0 or waiting for the Go rewrite? #TypeScript #WebDevelopment #JavaScript #devlife #DevTools
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Many developers jump to frameworks… but ignore JavaScript fundamentals. It works — until things break. Then come the real issues: Confusion in logic. Debugging struggles. Weak problem-solving. Framework dependency. JavaScript in 2026 isn’t just syntax. It’s about mastering the core concepts. 💡 Must-Know Basics: • Variables & clean declarations • Data types & operators • Functions & logic building • Loops & arrays • DOM manipulation ⚡ Strong JavaScript basics = Strong developer foundation #JavaScript #WebDevelopment #FrontendDevelopment #CodingTips #LearnJavaScript #DeveloperLife #ProgrammingBasics #SoftwareEngineering
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The spread operator looks like this: ... The rest operator looks like this: ... They're identical. But they do opposite things. Spread = Expands outward Rest = Collects inward I wrote a detailed guide breaking down both with real examples: Array & object spreading patterns Rest parameters & destructuring Practical use cases (React, APIs, function forwarding) Why context matters Simple rule: Use spread to unpack. Use rest to gather. 🔗 Read here: https://lnkd.in/gnMgH-zR More JavaScript fundamentals on Hashnode: https://lnkd.in/gAwxuryw Inspired by @Hitesh Choudhary @Piyush Garg @ChaiCode #JavaScript #ES6 #WebDevelopment
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Day 14 #100DaysOfCode 💻 Today I learned Promise & Async/Await in JavaScript. Promise helps handle asynchronous operations like API calls. Async/Await makes code cleaner and easier to read. Example: function getData() { return new Promise((resolve) => { setTimeout(() => { resolve("Data received"); }, 1000); }); } async function fetchData() { const result = await getData(); console.log(result); } fetchData(); Now I can handle async code without messy callbacks 🚀 #JavaScript #AsyncAwait #Promise #WebDevelopment #CodingJourney #Akbiplob
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JavaScript is single-threaded. But that doesn’t mean it can’t handle concurrency. Understanding the event loop, the call stack, microtasks vs macrotasks, and how async operations are delegated is what separates surface-level knowledge from real backend understanding. If you can’t explain how your system behaves under load — you’re not done learning it. Still sharpening this every day.
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01/03/2026 | JavaScript - Lect 8 | Modern Async JavaScript Today’s topics: • Modern async patterns • Closures and scope • DOM (Document Object Model) • Event handling • Fetch API Fetched data using API and built a Todo App while practicing DOM and async concepts. Hitesh Choudhary Piyush Garg Jay Kadlag Akash Kadlag Suraj Kumar Jha
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JavaScript is a single-threaded language, which means it executes one task at a time using the call stack. But it can still handle asynchronous tasks like API calls, timers, and promises. This happens because of the Event Loop. The Event Loop continuously checks if the call stack is empty. When it is empty, it takes tasks from the callback queue and moves them to the stack to be executed. Because of this system, JavaScript can run asynchronous operations without blocking the main thread, which makes web applications faster and more responsive. Learning the Event Loop helped me understand how JavaScript manages asynchronous code behind the scenes. #JavaScript #Coding #EventLoop #async
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Today I worked on a small automation project using JavaScript and Node.js. https://lnkd.in/geXynPVJ The script automatically organizes files by: • File type (images, videos, documents, etc.) • File date (year → month → category) Example structure it generates: 2026/ March/ images/ videos/ documents/ Some features I implemented: ✔ Case-insensitive file detection ✔ Automatic folder creation ✔ File collision protection ✔ Fallback category for unknown files ▶️ How to Use Install Node.js node -v Clone the repo git clone https://lnkd.in/gZmYZFwY cd organize-by-date Run the script node organize.js /path/to/folder Example: node organize.js ~/Downloads Done ✅ Files will be organized into: Year/ Month/ images/ videos/ documents/ others/ #JavaScript #NodeJS #Automation #Coding #DeveloperJourney
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The TypeScript compiler has been written in JavaScript since day one. That's ending. TypeScript 6.0 RC came out last week, and while the changelog is packed, the real headline is what it represents: this is the last major release before the compiler gets rewritten in Go for version 7.0. Native speed. Parallel type checking. A fundamentally different engine under the hood. 6.0 is the bridge. It's designed to get your codebase ready so the jump to 7.0 doesn't break everything at once. A few highlights worth knowing about: "strict" is now true by default. Sounds small, but it's a statement - the ecosystem has moved on from "maybe we'll add types later". Temporal API types are included. For anyone who's ever tried to do timezone math in JS and questioned their career choices - there's finally a proper date/time API making its way into the language, and TS now has the types ready. ES2025 support brings things like RegExp.escape and Map.getOrInsert - small quality-of-life wins that remove boilerplate you've been copy-pasting for years. And then there's the deprecation list. Old module resolution modes, legacy targets, options that won't exist in 7.0. The team added an ignoreDeprecations escape hatch for now, but that disappears with the next major version. My take: don't sleep on this one. It's tempting to wait for 7.0 since that's the "exciting" release, but 6.0 is where you do the prep work. Upgrading in two big jumps is always worse than one smooth transition. Link to the full announcement below. https://lnkd.in/eJTpEu_j #javascript #typescript #dev #microsoft #softwareengineering
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TypeScript 6 will be the last version based on JavaScript; version 7 will have a much faster compiler written in Go 👍 But most importantly, TypeScript 6 has finally, finally blessed us with native Temporal API support! And frankly, it’s about time we get rid of the JavaScript Date object with its zero-indexed months and its weird ability to parse literally any string you throw at it and return a different result depending on which browser your code is running in and whether Mercury is in retrograde. The Temporal API has immutable objects, proper timezone handling (!!) and unambiguous parsing. So long, Date object, you won’t be missed. We’re finally free 😎 https://lnkd.in/eKPUC77E #typescript #javascript #temporal #sapui5
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Looks like a solid bridge release before the bigger changes in 7.0. The Go rewrite is what I’m really curious about, especially in terms of type-checking performance.