⚡ JavaScript Event Loop: Complete Guide to Asynchronous Execution
Category: js / general-concepts
Difficulty: hard
Interview Importance: 🔴 Critical — The Event Loop is asked in 85% of JavaScript interviews. Understanding it is essential for explaining how async code works, debugging timing issues, and architecting performant applications. 1️⃣ What is the Event Loop? The Event Loop is JavaScript's mechanism for handling asynchronous operations in a single-threaded environment. It continuously monitors the call stack and task queues, executing code in a specific order to create the illusion of concurrent execution. Visual Representation: [code example] Real-World Analogy: Restaurant Kitchen 🍳 Imagine a restaurant kitchen with one chef (single-threaded JavaScript):...