What is Debounce in JavaScript? (Explained Simply)

In modern frontend development, performance plays a crucial role — especially when dealing with events like scroll, resize, or keyup. This is where debouncing in JavaScript becomes essential.

Debounce is a technique that limits how often a function is executed. Instead of triggering a function repeatedly during a rapid event (like typing in a search bar), the function is delayed and executed only after the event has stopped firing for a defined time.

Imagine a user typing in a search field. Without debounce, each keystroke could trigger a network request — flooding the server and slowing down the UI. With debounce, the function waits until the user pauses typing, then sends one clean request.

This technique helps in reducing API calls, improving UI responsiveness, and making your code more efficient.

👉 Read the full article with code samples and live examples on my blog:

➡️ https://webcodingwithankur.blogspot.com/2025/06/javascript-debounce-made-simple-live.html

Let me know your thoughts and how you’ve used debounce in your own projects! 💬