🎯 What is the Event Loop in JavaScript? A Complete Guide with Diagrams
🔁 What is the Event Loop in JavaScript? A Complete Guide with Diagrams Have you ever wondered how JavaScript handles asynchronous operations like setTimeout , Promises, or fetch() ? The secret lies in something called the Event Loop . In this blog post, we’ll break down: ✅ What the JavaScript Event Loop is ✅ How the Call Stack, Web APIs, and Queues work together ✅ A visual diagram to understand the flow ✅ A practical code example to clear your doubts 🔄 What is the Event Loop? JavaScript is a single-threaded language , meaning it can only do one thing at a time. But it still handles asynchronous tasks efficiently thanks to the Event Loop . Let’s understand how it works through its key components. 📊 Components of the Event Loop Call Stack: Where JavaScript tracks which function is currently running. Web APIs: Browser-provided functionalities like setTimeout , DOM Events , etc. Callback Queue: Holds callbacks from Web APIs waiting to be execut...
