Noticing lag or excessive function calls in your JavaScript app? In this tutorial, you’ll learn how to debounce a function in JavaScript — a must-know technique for optimizing performance during high-frequency events like scroll, resize, and input.

Debouncing ensures that a function executes only after a pause in user actions, helping you reduce unnecessary processing and improve responsiveness.

In this video, you’ll learn:

What is debouncing in JavaScript?

How to create a custom debounce function

Real-world examples: input search, window resize, and scroll

The difference between debounce and throttle

Best practices for writing clean, reusable debounce utilities

Bonus: using lodash.debounce() for simplicity

This video is ideal for JavaScript beginners and intermediate developers working on interactive web projects or preparing for technical interviews.

Explore more in our JavaScript Playlist for clean code and performance-enhancing tips!

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