Debouncing in JavaScript: An Easy-to-Understand Guide

If you’re a JavaScript developer, you may have heard the term “debouncing” thrown around quite often.
Debouncing is a technique used to optimize the performance of web applications, particularly those that require user input, by reducing the number of unnecessary calls to a function.

In this article, we’ll dive into the world of debouncing and learn what it is, why it is used, it’s working and how to implement it in your applications.

What is Debouncing?

Debouncing is a programming technique that helps limit the rate at which a function is executed. When you use debouncing, you’re essentially telling your application to wait for a certain amount of time before executing a function.

In layman's terms, ‘debouncing’ is a technique that delays the execution of a function until a certain amount of time has passed without the function being called again.

This technique is useful in scenarios where a function is being called multiple times in quick successions, such as when a user types in an input field or scrolls a webpage. Without debouncing, a function could be called too frequently, leading to unnecessary computations and slow performance.