throttleit

What is throttleit?

The throttleit package is a utility that allows you to throttle a function, meaning it limits the rate at which a function can fire. This is particularly useful for handling repetitive events that you want to control, such as window resizing, scrolling, or keypresses in a performant way.

What are throttleit's main functionalities?

Throttling function calls

This code sample demonstrates how to use throttleit to throttle a window resize event handler. The onResize function will not be called more than once every 200 milliseconds, no matter how often the resize event fires.

const throttle = require('throttleit');

function onResize(event) {
  console.log('Window resized.');
}

window.addEventListener('resize', throttle(onResize, 200));

Other packages similar to throttleit

lodash.throttle

lodash.throttle is a function from the popular Lodash library that provides a similar throttling functionality. It is often used for the same purposes as throttleit but comes as part of a larger utility library, which might be more suitable for projects that already use Lodash for other utilities.

bottleneck

Bottleneck is a package that is more focused on rate-limiting and not just throttling. It can be used to limit the execution of functions to a maximum number of times per interval, which is useful for managing API rate limits or other scenarios where you need a more robust solution than simple throttling.

README

throttleit

Throttle a function to limit its execution rate

Install

npm install throttleit

Usage

import throttle from 'throttleit';

// Throttling a function that processes data.
function processData(data) {
	console.log('Processing:', data);

	// Add data processing logic here.
}

// Throttle the `processData` function to be called at most once every 3 seconds.
const throttledProcessData = throttle(processData, 3000);

// Simulate calling the function multiple times with different data.
throttledProcessData('Data 1');
throttledProcessData('Data 2');
throttledProcessData('Data 3');

API

throttle(function, wait)

Creates a throttled function that limits calls to the original function to at most once every wait milliseconds. It guarantees execution after the final invocation and maintains the last context (this) and arguments.

function

Type: function

The function to be throttled.

wait

Type: number

The number of milliseconds to throttle invocations to.

Related

• p-throttle - Throttle async functions
• debounce - Delay function calls until a set time elapses after the last invocation