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Mar 16, 2022 · Fundamentals

Understanding the JavaScript Event Loop: Macro‑tasks, Micro‑tasks, Browser and Node.js

This article explains how JavaScript's single‑threaded engine uses the event loop to manage synchronous and asynchronous tasks, distinguishes macro‑tasks from micro‑tasks, and compares the implementations in browsers and Node.js, including version‑specific behavior and common pitfalls.