What Is Event Loop In JavaScript And How It Works? | Javascript Event Loop Explained | Simplilearn

🔥Generative AI, Machine Learning, And Intelligent Automation - https://www.simplilearn.com/ihfc-iitd-gen-ai-automation-course?utm_campaign=4VrXINqvtvo&utm_medium=DescriptionFirstFold&utm_source=Youtube 🔥Applied Generative AI Specialization - https://www.simplilearn.com/applied-ai-course?utm_campaign=4VrXINqvtvo&utm_medium=DescriptionFirstFold&utm_source=Youtube 🔥Professional Certificate Program in Generative AI and Machine Learning - IITG (India Only) - https://www.simplilearn.com/iitg-generative-ai-machine-learning-program?utm_campaign=4VrXINqvtvo&utm_medium=DescriptionFirstFold&utm_source=Youtube 🔥Advanced Executive Program In Applied Generative AI - https://www.simplilearn.com/applied-generative-ai-course?utm_campaign=4VrXINqvtvo&utm_medium=DescriptionFirstFold&utm_source=Youtube In this video, we break down the JavaScript Event Loop in a clear and practical way so you can finally understand why asynchronous code behaves the way it does. JavaScript may be a single-threaded language, but it can still handle timers, API calls, Promises, and other asynchronous operations without freezing the browser. That happens because of the Event Loop, which works together with the Call Stack, Web APIs, and different task queues to decide what gets executed next. If you have ever written JavaScript code and wondered why a Promise callback runs before setTimeout(), or why the output order looks completely different from the order of the code, this video will make that logic much easier to follow. Instead of memorizing confusing outputs, you will learn how JavaScript actually processes synchronous and asynchronous tasks behind the scenes. We also walk through a complete execution example step by step, so you can see exactly how the final output is formed. You will learn what the Call Stack does, how asynchronous tasks are offloaded to the browser runtime, how the Microtask Queue and Macrotask Queue differ, and why Microtasks always get priority over Macrotasks. We also ex