#JavaScript

Mastering the Event Loop in JavaScript

Mastering the Event Loop in JavaScript

The Event Loop is a fundamental concept for modern JavaScript development...

1. The Call Stack

When a script runs, function calls are pushed onto the stack...

2. The Task Queue (Macrotasks)

Operations like setTimeout(), I/O events, and user interactions...

3. The Job Queue (Microtasks)

Promises and MutationObserver tasks live here...

Conclusion

A deep understanding of the Event Loop prevents common issues...

💬 Comments (2)

dev_raj
dev_raj

This finally made me understand why setTimeout runs after promises. Great explanation!

10/2/2025❤️23
Jane Doe
Jane Doe

Glad it helped! The microtask queue is often overlooked, but it’s super important.

10/2/2025❤️12
codewithsam
codewithsam

Totally agree! The difference between macro and micro tasks blew my mind.

10/2/2025❤️5
js_guru
js_guru

Would love to see a visual diagram for this topic next time!

10/3/2025❤️8