What is throttling in event handling?

What is throttling in event handling?

Throttling in event handling is a technique used to limit the number of times a function is executed over time. It ensures that a function is not called too frequently, which can help improve performance and reduce resource consumption.

Can you give me an example of where throttling is useful?

Sure! Throttling is particularly useful in scenarios like scrolling events or window resizing. For instance, if you have a function that updates the UI on scroll, throttling can prevent it from being called excessively, leading to smoother performance.

How does throttling differ from debouncing?

Throttling limits the execution of a function to a specific interval, while debouncing ensures that a function is only executed after a certain period of inactivity. In other words, throttling is about maintaining a steady rate of execution, whereas debouncing is about delaying execution until the user has stopped triggering events.

What are some libraries that can help with throttling?

Popular libraries like Lodash and Underscore.js provide built-in functions for throttling. You can use _.throttle from Lodash to easily implement throttling in your JavaScript code.