{"id":13432929,"url":"https://github.com/toss/es-toolkit","last_synced_at":"2026-03-04T12:00:45.532Z","repository":{"id":242034022,"uuid":"791801483","full_name":"toss/es-toolkit","owner":"toss","description":"A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.","archived":false,"fork":false,"pushed_at":"2026-02-27T08:04:13.000Z","size":18346,"stargazers_count":10813,"open_issues_count":113,"forks_count":532,"subscribers_count":33,"default_branch":"main","last_synced_at":"2026-02-27T13:32:50.213Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://es-toolkit.dev","language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/toss.png","metadata":{"files":{"readme":"README-ja_jp.md","changelog":"CHANGELOG.md","contributing":".github/CONTRIBUTING-ko_kr.md","funding":null,"license":"LICENSE","code_of_conduct":".github/CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":".github/CODEOWNERS","security":"SECURITY.md","support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2024-04-25T11:56:31.000Z","updated_at":"2026-02-27T13:31:25.000Z","dependencies_parsed_at":"2024-08-07T13:14:20.195Z","dependency_job_id":"68fa1e46-6df5-478e-bed6-04c8eb772b5d","html_url":"https://github.com/toss/es-toolkit","commit_stats":null,"previous_names":["toss/es-toolkit"],"tags_count":74,"template":false,"template_full_name":null,"purl":"pkg:github/toss/es-toolkit","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/toss%2Fes-toolkit","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/toss%2Fes-toolkit/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/toss%2Fes-toolkit/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/toss%2Fes-toolkit/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/toss","download_url":"https://codeload.github.com/toss/es-toolkit/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/toss%2Fes-toolkit/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":30079565,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-03-04T11:57:42.557Z","status":"ssl_error","status_checked_at":"2026-03-04T11:56:10.793Z","response_time":59,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-07-31T02:01:18.677Z","updated_at":"2026-03-04T12:00:44.875Z","avatar_url":"https://github.com/toss.png","language":"TypeScript","readme":"![](./docs/public/og.png)\n\n# es-toolkit \u0026middot; [![MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/toss/slash/blob/main/LICENSE) [![codecov](https://codecov.io/gh/toss/es-toolkit/graph/badge.svg?token=8N5S3AR3C7)](https://codecov.io/gh/toss/es-toolkit) [![NPM badge](https://img.shields.io/npm/v/es-toolkit?logo=npm)](https://www.npmjs.com/package/es-toolkit) [![JSR badge](https://jsr.io/badges/@es-toolkit/es-toolkit)](https://jsr.io/@es-toolkit/es-toolkit) [![Discord Badge](https://discord.com/api/guilds/1281071127052943361/widget.png?style=shield)](https://discord.gg/vGXbVjP2nY)\n\n[English](https://github.com/toss/es-toolkit/blob/main/README.md) | [한국어](https://github.com/toss/es-toolkit/blob/main/README-ko_kr.md) | [简体中文](https://github.com/toss/es-toolkit/blob/main/README-zh_hans.md) | 日本語\n\nes-toolkitは、最先端のJavaScriptユーティリティライブラリであり、高性能で小さなバンドルサイズ、強力な型注釈を提供します。\n\n- es-toolkitは、[debounce](https://es-toolkit.dev/reference/function/debounce.html)、[delay](https://es-toolkit.dev/reference/promise/delay.html)、[chunk](https://es-toolkit.dev/reference/array/chunk.html)、[sum](https://es-toolkit.dev/reference/math/sum.html)、[pick](https://es-toolkit.dev/reference/object/pick.html)など、日常的に使用するさまざまなユーティリティ関数を最新の実装で提供します。\n- パフォーマンスを重視して設計されており、es-toolkitは最新のJavaScript環境で[2-3倍の性能向上](https://es-toolkit.dev/performance.html)を実現します。\n- es-toolkitはツリーシェイキングをサポートしており、他のライブラリと比較してJavaScriptコードを最大[97%削減](https://es-toolkit.dev/bundle-size.html)します。\n- es-toolkitは、lodashを簡単に置き換えることができる完全な互換性レイヤー、[es-toolkit/compat](https://es-toolkit.dev/compatibility.html)を提供します。\n- es-toolkitには組み込みのTypeScriptサポートが含まれており、直感的で堅牢な型を提供します。また、[isNotNil](https://es-toolkit.dev/reference/predicate/isNotNil.html)などの便利な型ガードも提供します。\n- es-toolkitは、[Storybook](https://github.com/storybookjs/storybook/blob/9d862798d666678cc4822e857c00bbd744169ced/code/core/package.json#L358)、Recharts、ink、CKEditorなど、信頼性の高い人気のオープンソースプロジェクトで利用されています。\n- es-toolkitは100%のテストカバレッジを持ち、信頼性と堅牢性を確保しています。\n\n## 例\n\n```tsx\n// jsrでは '@es-toolkit/es-toolkit' からインポートします。\nimport { chunk, debounce } from 'es-toolkit';\n\nconst debouncedLog = debounce(message =\u003e {\n  console.log(message);\n}, 300);\n\n// この呼び出しはデバウンスされます\ndebouncedLog('Hello, world!');\n\nconst array = [1, 2, 3, 4, 5, 6];\nconst chunkedArray = chunk(array, 2);\n\nconsole.log(chunkedArray);\n// 出力: [[1, 2], [3, 4], [5, 6]]\n```\n\n## 貢献\n\nコミュニティの皆さんからの貢献を歓迎します。詳細な貢献ガイドについては、以下をお読みください。\n\n[CONTRIBUTING](https://github.com/toss/es-toolkit/blob/main/.github/CONTRIBUTING.md)\n\n## ライセンス\n\nMIT © Viva Republica, Inc. 詳細については[LICENSE](./LICENSE)をご覧ください。\n\n\u003ca title=\"Toss\" href=\"https://toss.im\"\u003e\n  \u003cpicture\u003e\n    \u003csource media=\"(prefers-color-scheme: dark)\" srcset=\"https://static.toss.im/logos/png/4x/logo-toss-reverse.png\"\u003e\n    \u003cimg alt=\"Toss\" src=\"https://static.toss.im/logos/png/4x/logo-toss.png\" width=\"100\"\u003e\n  \u003c/picture\u003e\n\u003c/a\u003e\n","funding_links":[],"categories":["TypeScript","others","**1. Libraries**","Utilities"],"sub_categories":["Functional Programming"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftoss%2Fes-toolkit","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftoss%2Fes-toolkit","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftoss%2Fes-toolkit/lists"}