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ASANKESH SHARMAiamankeshsharma.hashnode.devJun 17 · 3 min read

Promises in Javascript

Introduction A promise is a object that represents eventual completion (or failure) of asyncronous operations. Simple defination: A placeholder for a future value. Use of Promise: To execute asyncron

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PJPriyanshu Jajalasync-js-explained.hashnode.devMar 21 · 10 min read

Async JavaScript Explained — Part 3

Part 3: How JavaScript Really Works If you've made it through Parts 1 & 2, you now know how to write async JavaScript. But there's a deeper question that most developers never bother to ask: how does

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SPSourabh Pandesaurabh532.hashnode.devMar 17 · 6 min read

Mastering the JavaScript Event Loop - Microtasks vs Macrotasks (with example)

When I first built a tiny chat widget for a client, messages sometimes appeared in the wrong order. The UI would show a system message before the user’s own message — even though the network response

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WGWt group links 1whatsapp-group-links.hashnode.devOct 31, 2025 · 3 min read

How Telegram Bots Automate Micro-Task Systems Using APIs

Introduction Automation has transformed how people complete small digital tasks. From data labeling to app reviews, most platforms now rely on APIs and bots to simplify repetitive work. Telegram — originally a messaging platform — has become a practi...

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NJNeelesh Joshineeltyper001.hashnode.devOct 10, 2025 · 4 min read

Asynchronous Vs Synchronous in JavaScript

1.1 Synchronous Synchronous statements in JavaScript are statements that execute sequentially, meaning each statement must complete before the next one begins. They block the execution of subsequent code until the current task is finished. Examples i...

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MOMohammed owaismohammed-owais.hashnode.devAug 23, 2025 · 5 min read

Javascript Event Loop

Why Your JavaScript Runs Out of Order: The Event Loop Explained If you're working with JavaScript, you've likely encountered a situation like this. You have the following code: setTimeout(() => console.log("Timeout!"), 0); Promise.resolve().then(() =...

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JAJiya Agrawaljiya-blogs.hashnode.devAug 14, 2025 · 3 min read

Promise Hacks Out, queueMicrotask() In

Stop turning functions into promises just for async execution - Meet queueMicrotask() If you’ve ever wrapped a function in Promise.resolve().then(...) just to make it run asynchronously, you’re not alone.It’s a common trick and it work, but it’s not ...

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PRPayal Ratheepblogs.hashnode.devJul 20, 2025 · 4 min read

How JavaScript Really Works Under the Hood

Synchronous Javascript (Javascript Engine) Javascript is a synchronous language at its core, that means it runs on a single thread with a single call stack. So, all the code you write in core JS is executed line by line, one after the other on the sa...

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SPSantwan Pathakcoffee-and-code.hashnode.devMar 17, 2025 · 4 min read

Understanding Microtask Queue and Callback Queue in JavaScript

☕ Introduction JavaScript is a single-threaded language, meaning it executes one operation at a time. However, it manages asynchronous tasks efficiently using the Event Loop, a mechanism that allows JavaScript to handle non-blocking operations seamle...