es-toolkit ·

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 includes built-in TypeScript support, with straightforward yet robust types. It also provides useful type guards such as isNotNil.
es-toolkit is battle-tested with 100% test coverage, ensuring reliability and robustness.

Contributing

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

Name		Name	Last commit message	Last commit date
Latest commit History 57 Commits
.circleci		.circleci
.github		.github
.scripts		.scripts
.vscode		.vscode
.yarn/sdks		.yarn/sdks
benchmarks		benchmarks
docs		docs
src		src
.eslintrc.js		.eslintrc.js
.gitignore		.gitignore
.npmignore		.npmignore
.nvmrc		.nvmrc
.prettierignore		.prettierignore
.prettierrc		.prettierrc
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README-ko_kr.md		README-ko_kr.md
README.md		README.md
babel.config.js		babel.config.js
codecov.yml		codecov.yml
package.json		package.json
tsconfig.json		tsconfig.json
tsup.config.ts		tsup.config.ts
vitest.config.mts		vitest.config.mts
yarn.lock		yarn.lock