{"id":15365634,"url":"https://github.com/tunnckocore/is-node-emitter","last_synced_at":"2025-10-30T20:09:15.349Z","repository":{"id":57277406,"uuid":"42062658","full_name":"tunnckoCore/is-node-emitter","owner":"tunnckoCore","description":"Strictly checks that given value is nodejs EventEmitter or something like it. 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It's easy, because his API is in frozen state.\n\n[![code climate][codeclimate-img]][codeclimate-url] [![standard code style][standard-img]][standard-url] [![travis build status][travis-img]][travis-url] [![coverage status][coveralls-img]][coveralls-url] [![dependency status][david-img]][david-url]\n\n\n## Install\n```\nnpm i is-node-emitter --save\n```\n\n\n## Usage\n\u003e For more use-cases see the [tests](./test.js)\n\n```js\nvar isNodeEmitter = require('is-node-emitter')\n\n// emitters\nvar Emitter = require('events').EventEmitter\nvar DualEmitter = require('dual-emitter')\nvar ChildProcess = require('child_process')\nvar EventEmitter2 = require('eventemitter2').EventEmitter2\nvar EventEmitter3 = require('eventemitter3')\nvar ComponentEmitter = require('component-emitter')\n\n// from iojs 2.x\nvar ChildProcessCtor = require('child_process').ChildProcess\n```\n\n### returns `true`\n\n```js\nvar fs = require('fs')\n\nisNodeEmitter(fs.createReadStream('./index'))\nisNodeEmitter(new Emitter())\nisNodeEmitter(new EventEmitter2({wildcard: false}))\nisNodeEmitter(new ChildProcessCtor())\nisNodeEmitter(ChildProcess.spawn('echo', ['hello']))\nisNodeEmitter(ChildProcess.exec('echo hello'))\n```\n\n### returns `false`\n\n```js\nisNodeEmitter(DualEmitter())\nisNodeEmitter(ComponentEmitter())\nisNodeEmitter(new DualEmitter())\nisNodeEmitter(new ComponentEmitter())\nisNodeEmitter(new EventEmitter3())\n```\n\n\n## Related\n- [component-emitter](https://github.com/component/emitter): Event emitter\n- [dual-emitter](https://github.com/tunnckocore/dual-emitter): :tropical_drink: EventEmitter done right and no dependencies. For nodejs and the browser (\u003e= IE8). Can emit custom or DOM events.\n- [dush](https://github.com/tunnckocore/dush): Minimalist 1.5kb event delegation for the browser (IE8+) and nodejs.\n- [eventemitter2](https://github.com/hij1nx/EventEmitter2): A Node.js event emitter implementation with namespaces, wildcards, TTL and browser support.\n- [eventemitter3](https://github.com/primus/eventemitter3): EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.\n- [kudos](https://github.com/tunnckocore/kudos): kudos done right - unopinionated, made simple, so simple it hurts!\n- [to-emitter](https://github.com/jonschlinkert/to-emitter): Convert any object into an event-emitter, and emits events with the name of any any method called on the object.\n\n\n## Contributing\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/tunnckoCore/is-node-emitter/issues/new).  \nBut before doing anything, please read the [CONTRIBUTING.md](./CONTRIBUTING.md) guidelines.\n\n\n## [Charlike Make Reagent](http://j.mp/1stW47C) [![new message to charlike][new-message-img]][new-message-url] [![freenode #charlike][freenode-img]][freenode-url]\n\n[![tunnckocore.tk][author-www-img]][author-www-url] [![keybase tunnckocore][keybase-img]][keybase-url] [![tunnckoCore npm][author-npm-img]][author-npm-url] [![tunnckoCore twitter][author-twitter-img]][author-twitter-url] [![tunnckoCore github][author-github-img]][author-github-url]\n\n\n[npmjs-url]: https://www.npmjs.com/package/is-node-emitter\n[npmjs-img]: https://img.shields.io/npm/v/is-node-emitter.svg?label=is-node-emitter\n\n[license-url]: https://github.com/tunnckoCore/is-node-emitter/blob/master/LICENSE.md\n[license-img]: https://img.shields.io/badge/license-MIT-blue.svg\n\n\n[codeclimate-url]: https://codeclimate.com/github/tunnckoCore/is-node-emitter\n[codeclimate-img]: https://img.shields.io/codeclimate/github/tunnckoCore/is-node-emitter.svg\n\n[travis-url]: https://travis-ci.org/tunnckoCore/is-node-emitter\n[travis-img]: https://img.shields.io/travis/tunnckoCore/is-node-emitter.svg\n\n[coveralls-url]: https://coveralls.io/r/tunnckoCore/is-node-emitter\n[coveralls-img]: https://img.shields.io/coveralls/tunnckoCore/is-node-emitter.svg\n\n[david-url]: https://david-dm.org/tunnckoCore/is-node-emitter\n[david-img]: https://img.shields.io/david/tunnckoCore/is-node-emitter.svg\n\n[standard-url]: https://github.com/feross/standard\n[standard-img]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg\n\n\n[author-www-url]: http://www.tunnckocore.tk\n[author-www-img]: https://img.shields.io/badge/www-tunnckocore.tk-fe7d37.svg\n\n[keybase-url]: https://keybase.io/tunnckocore\n[keybase-img]: https://img.shields.io/badge/keybase-tunnckocore-8a7967.svg\n\n[author-npm-url]: https://www.npmjs.com/~tunnckocore\n[author-npm-img]: https://img.shields.io/badge/npm-~tunnckocore-cb3837.svg\n\n[author-twitter-url]: https://twitter.com/tunnckoCore\n[author-twitter-img]: https://img.shields.io/badge/twitter-@tunnckoCore-55acee.svg\n\n[author-github-url]: https://github.com/tunnckoCore\n[author-github-img]: https://img.shields.io/badge/github-@tunnckoCore-4183c4.svg\n\n[freenode-url]: http://webchat.freenode.net/?channels=charlike\n[freenode-img]: https://img.shields.io/badge/freenode-%23charlike-5654a4.svg\n\n[new-message-url]: https://github.com/tunnckoCore/ama\n[new-message-img]: https://img.shields.io/badge/ask%20me-anything-green.svg","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftunnckocore%2Fis-node-emitter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftunnckocore%2Fis-node-emitter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftunnckocore%2Fis-node-emitter/lists"}