es-toolkit ·

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es-toolkit is a state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

• es-toolkit offers a variety of everyday utility functions with modern implementations, such as debounce, delay, chunk, sum, and pick.
• Designed with performance in mind, es-toolkit achieves 2-3× better performance in modern JavaScript environments.
• es-toolkit supports tree shaking out of the box, and reduces JavaScript code by up to 97% compared to other libraries.
• es-toolkit offers a complete compatibility layer to seamlessly replace lodash, available as es-toolkit/compat.
• es-toolkit includes built-in TypeScript support, with straightforward yet robust types. It also provides useful type guards such as isNotNil.
• es-toolkit is utilized by several popular open-source libraries, such as Storybook and ink.
• es-toolkit is battle-tested with 100% test coverage, ensuring reliability and robustness.

Examples

1// import from '@es-toolkit/es-toolkit' in jsr.
2import { chunk, debounce } from 'es-toolkit';
3
4const debouncedLog = debounce(message => {
5  console.log(message);
6}, 300);
7
8// This call will be debounced
9debouncedLog('Hello, world!');
10
11const array = [1, 2, 3, 4, 5, 6];
12const chunkedArray = chunk(array, 2);
13
14console.log(chunkedArray);
15// Output: [[1, 2], [3, 4], [5, 6]]

Contributing

We welcome contribution from everyone in the community. Read below for detailed contribution guide.

CONTRIBUTING

License

MIT © Viva Republica, Inc. See LICENSE for details.