es-toolkit: A Modern, High-Performance JavaScript Utility Library

Introduction

es-toolkit is a state-of-the-art, high-performance JavaScript utility library designed for modern web development. It offers a comprehensive set of everyday utility functions, including debounce, delay, chunk, sum, and pick, all with modern implementations. This library stands out for its exceptional performance, achieving 2-3 times better speeds in modern JavaScript environments, and its incredibly small bundle size, reducing JavaScript code by up to 97% compared to other libraries, thanks to built-in tree-shaking.

Installation

To integrate es-toolkit into your project, you can use npm, yarn, or pnpm:

npm install es-toolkit
# or
yarn add es-toolkit
# or
pnpm add es-toolkit

Examples

Here are a couple of examples demonstrating how to use debounce and chunk from es-toolkit:

import { chunk, debounce } from 'es-toolkit';

const debouncedLog = debounce(message => {
  console.log(message);
}, 300);

// This call will be debounced
debouncedLog('Hello, world!');

const array = [1, 2, 3, 4, 5, 6];
const chunkedArray = chunk(array, 2);

console.log(chunkedArray);
// Output: [[1, 2], [3, 4], [5, 6]]

Why Use es-toolkit?

es-toolkit offers compelling advantages for developers seeking efficient and reliable utility functions:

• Superior Performance: Experience 2-3 times faster execution in modern JavaScript environments.
• Minimal Bundle Size: Benefit from up to 97% smaller JavaScript code, with full tree-shaking support out of the box.
• Robust TypeScript Support: Enjoy built-in, straightforward, and powerful type annotations, including useful type guards like isNotNil.
• Seamless Lodash Compatibility: Easily migrate existing projects with a complete compatibility layer available as es-toolkit/compat.
• Battle-Tested Reliability: Trusted by popular open-source projects such as Storybook, Recharts, ink, and CKEditor, and backed by 100% test coverage.

Links

Explore es-toolkit further through these official resources:

• GitHub Repository
• Official Documentation
• NPM Package
• JSR Package