{"id":41054968,"url":"https://github.com/typescript-package/event-emitter","last_synced_at":"2026-01-22T11:35:40.140Z","repository":{"id":331428738,"uuid":"1125891850","full_name":"typescript-package/event-emitter","owner":"typescript-package","description":"A lightweight TypeScript library for event emitter.","archived":false,"fork":false,"pushed_at":"2026-01-02T08:03:39.000Z","size":21,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2026-01-08T05:16:25.163Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/typescript-package.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":".github/FUNDING.yml","license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"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},"funding":{"github":["angular-package"],"patreon":"angularpackage","open_collective":null,"ko_fi":null,"tidelift":null,"community_bridge":null,"liberapay":null,"issuehunt":null,"otechie":null,"custom":["https://checkout.revolut.com/pay/048b10a3-0e10-42c8-a917-e3e9cb4c8e29","https://donate.stripe.com/dR614hfDZcJE3wAcMM"]}},"created_at":"2025-12-31T15:27:57.000Z","updated_at":"2026-01-02T08:03:43.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/typescript-package/event-emitter","commit_stats":null,"previous_names":["typescript-package/event-emitter"],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/typescript-package/event-emitter","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/typescript-package%2Fevent-emitter","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/typescript-package%2Fevent-emitter/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/typescript-package%2Fevent-emitter/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/typescript-package%2Fevent-emitter/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/typescript-package","download_url":"https://codeload.github.com/typescript-package/event-emitter/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/typescript-package%2Fevent-emitter/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28662164,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-22T01:17:37.254Z","status":"online","status_checked_at":"2026-01-22T02:00:07.137Z","response_time":144,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"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":"2026-01-22T11:35:38.421Z","updated_at":"2026-01-22T11:35:40.133Z","avatar_url":"https://github.com/typescript-package.png","language":"TypeScript","funding_links":["https://github.com/sponsors/angular-package","https://patreon.com/angularpackage","https://checkout.revolut.com/pay/048b10a3-0e10-42c8-a917-e3e9cb4c8e29","https://donate.stripe.com/dR614hfDZcJE3wAcMM","https://github.com/sponsors/angular-package/sponsorships?sponsor=sciborrudnicki\u0026tier_id=83618","https://www.patreon.com/checkout/angularpackage?rid=0\u0026fan_landing=true\u0026view_as=public"],"categories":[],"sub_categories":[],"readme":"\n\u003ca href=\"https://www.typescriptlang.org/\"\u003e\n  \u003cimg\n    src=\"https://raw.githubusercontent.com/typescript-package/core/refs/heads/main/ts-package-barcode-logo-512.png\"\n    width=\"20%\"\n    title=\"@typescript-package/event-emitter - A lightweight TypeScript package for event emitter.\"\n  /\u003e\n\u003c/a\u003e\n\n## @typescript-package/event-emitter\n\n\u003c!-- npm badge --\u003e\n[![npm version][typescript-package-npm-badge-svg]][typescript-package-npm-badge]\n[![GitHub issues][typescript-package-badge-issues]][typescript-package-issues]\n[![GitHub license][typescript-package-badge-license]][typescript-package-license]\n\nA **lightweight** TypeScript package for event emitter.\n\n## Table of contents\n\n- [Installation](#installation)\n- [Api](#api)\n  - Abstract\n    - [`EventEmitterBase`](#eventemitterbase)\n    - [`NamedEventEmitterBase`](#namedeventemitterbase)\n  - Concrete\n    - [`EventEmitter`](#eventemitter)\n    - [`NamedEventEmitter`](#namedeventemitter)\n- [Contributing](#contributing)\n- [Code of Conduct](code-of-conduct)\n- [Git](#git)\n  - [Commit](#commit)\n  - [Versioning](#versioning)\n- [License](#license)\n\n## Installation\n\n```bash\nnpm install @typescript-package/event-emitter --save-peer\n```\n\n## Api\n\n```typescript\nimport {\n  // Abstract.\n  EventEmitterBase,\n  NamedEventEmitterBase,\n  // Concrete.\n  EventEmitter,\n  NamedEventEmitter,\n} from '@typescript-package/event-emitter';\n```\n\n## Abstract\n\n### `EventEmitterBase`\n\nThe base abstraction class for an event emitter pattern.\n\n```typescript\nimport { EventEmitter } from '@typescript-package/event-emitter';\n```\n\n[`EventEmitterBase`](https://github.com/typescript-package/event-emitter/blob/main/src/lib/event-emitter.base.ts)\n\n### `NamedEventEmitterBase`\n\nA base abstraction class that implements a named event emitter pattern.\n\n```typescript\nimport { NamedEventEmitterBase } from '@typescript-package/event-emitter';\n```\n\n[`NamedEventEmitterBase`](https://github.com/typescript-package/event-emitter/blob/main/src/lib/named-event-emitter.base.ts)\n\n## Concrete\n\n### `EventEmitter`\n\nA concrete class that implements an event emitter pattern.\n\n```typescript\nimport { EventEmitter } from '@typescript-package/event-emitter';\n\nconst eventEmitter = new EventEmitter({\n  // adapter: ListenersSetAdapter,\n  async: false\n});\n\neventEmitter.on((msg) =\u003e console.log(`Received: ${msg}`));\neventEmitter.emit('Hello, World!');\n\n```\n\n[`EventEmitter`](https://github.com/typescript-package/event-emitter/blob/main/src/lib/event-emitter.class.ts)\n\n### `NamedEventEmitter`\n\nA concrete class that implements a named event emitter pattern.\n\n```typescript\nimport { NamedEventEmitter } from '@typescript-package/event-emitter';\n\nconst eventEmitter = new NamedEventEmitter({async: false}, {\n  'event1': [(msg: string) =\u003e {\n    console.log(`Listener 1: ${msg}`);\n  }],\n  'event2': [(num: number) =\u003e {\n    console.log(`Event 2 received number: ${num}`);\n  }]\n});\n\neventEmitter.clear('event1')\neventEmitter.on('event1', (msg: string) =\u003e {\n  console.log(`Listener 2: ${msg}`);\n});\n\neventEmitter.on('event2', (num: number) =\u003e {\n  console.log(`Event 2 received number: ${num}`);\n});\n\neventEmitter.emit('event1', 'Hello, World!');\neventEmitter.listeners('event1')?.forEach(listener =\u003e {\n  listener('Hello, World!');\n});\n```\n\n[`NamedEventEmitter`](https://github.com/typescript-package/event-emitter/blob/main/src/lib/named-event-emitter.class.ts)\n\n## Contributing\n\nYour contributions are valued! If you'd like to contribute, please feel free to submit a pull request. Help is always appreciated.\n\n## Support\n\nIf you find this package useful and would like to support its and general development, you can contribute through one of the following payment methods. Your support helps maintain the packages and continue adding new.\n\nSupport via:\n\n- [Stripe](https://donate.stripe.com/dR614hfDZcJE3wAcMM)\n- [Revolut](https://checkout.revolut.com/pay/048b10a3-0e10-42c8-a917-e3e9cb4c8e29)\n- [GitHub](https://github.com/sponsors/angular-package/sponsorships?sponsor=sciborrudnicki\u0026tier_id=83618)\n- [DonorBox](https://donorbox.org/become-a-sponsor-to-the-angular-package?default_interval=o)\n- [Patreon](https://www.patreon.com/checkout/angularpackage?rid=0\u0026fan_landing=true\u0026view_as=public)\n\nor via Trust Wallet\n\n- [XLM](https://link.trustwallet.com/send?coin=148\u0026address=GAFFFB7H3LG42O6JA63FJDRK4PP4JCNEOPHLGLLFH625X2KFYQ4UYVM4)\n- [USDT (BEP20)](https://link.trustwallet.com/send?coin=20000714\u0026address=0xA0c22A2bc7E37C1d5992dFDFFeD5E6f9298E1b94\u0026token_id=0x55d398326f99059fF775485246999027B3197955)\n- [ETH](https://link.trustwallet.com/send?coin=60\u0026address=0xA0c22A2bc7E37C1d5992dFDFFeD5E6f9298E1b94)\n- [BTC](https://link.trustwallet.com/send?coin=0\u0026address=bc1qnf709336tfl57ta5mfkf4t9fndhx7agxvv9svn)\n- [BNB](https://link.trustwallet.com/send?coin=20000714\u0026address=0xA0c22A2bc7E37C1d5992dFDFFeD5E6f9298E1b94)\n\nThanks for your support!\n\n## Code of Conduct\n\nBy participating in this project, you agree to follow **[Code of Conduct](https://www.contributor-covenant.org/version/2/1/code_of_conduct/)**.\n\n## GIT\n\n### Commit\n\nPlease follow the following commit message conventions:\n\n- [AngularJS Git Commit Message Conventions][git-commit-angular]\n- [Karma Git Commit Msg][git-commit-karma]\n- [Conventional Commits][git-commit-conventional]\n\n### Versioning\n\nThe package follows [Semantic Versioning 2.0.0][git-semver] for all releases. The versioning format is:\n\n**Given a version number MAJOR.MINOR.PATCH, increment the:**\n\n- MAJOR version when you make incompatible API changes,\n- MINOR version when you add functionality in a backwards-compatible manner, and\n- PATCH version when you make backwards-compatible bug fixes.\n\nAdditional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.\n\n**FAQ**\nHow should I deal with revisions in the 0.y.z initial development phase?\n\n\u003e The simplest thing to do is start your initial development release at 0.1.0 and then increment the minor version for each subsequent release.\n\nHow do I know when to release 1.0.0?\n\n\u003e If your software is being used in production, it should probably already be 1.0.0. If you have a stable API on which users have come to depend, you should be 1.0.0. If you’re worrying a lot about backwards compatibility, you should probably already be 1.0.0.\n\n## License\n\nMIT © typescript-package ([license][typescript-package-license])\n\n\u003c!-- This package: typescript-package  --\u003e\n  \u003c!-- GitHub: badges --\u003e\n  [typescript-package-badge-issues]: https://img.shields.io/github/issues/typescript-package/event-emitter\n  [isscript-package-badge-forks]: https://img.shields.io/github/forks/typescript-package/event-emitter\n  [typescript-package-badge-stars]: https://img.shields.io/github/stars/typescript-package/event-emitter\n  [typescript-package-badge-license]: https://img.shields.io/github/license/typescript-package/event-emitter\n  \u003c!-- GitHub: badges links --\u003e\n  [typescript-package-issues]: https://github.com/typescript-package/event-emitter/issues\n  [typescript-package-forks]: https://github.com/typescript-package/event-emitter/network\n  [typescript-package-license]: https://github.com/typescript-package/event-emitter/blob/master/LICENSE\n  [typescript-package-stars]: https://github.com/typescript-package/event-emitter/stargazers\n\u003c!-- This package --\u003e\n\n\u003c!-- Package: typescript-package --\u003e\n  \u003c!-- npm --\u003e\n  [typescript-package-npm-badge-svg]: https://badge.fury.io/js/@typescript-package%2Fevent-emitter.svg\n  [typescript-package-npm-badge]: https://badge.fury.io/js/@typescript-package%2Fevent-emitter\n\n\u003c!-- GIT --\u003e\n[git-semver]: http://semver.org/\n\n\u003c!-- GIT: commit --\u003e\n[git-commit-angular]: https://gist.github.com/stephenparish/9941e89d80e2bc58a153\n[git-commit-karma]: http://karma-runner.github.io/0.10/dev/git-commit-msg.html\n[git-commit-conventional]: https://www.conventionalcommits.org/en/v1.0.0/\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftypescript-package%2Fevent-emitter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftypescript-package%2Fevent-emitter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftypescript-package%2Fevent-emitter/lists"}