emitz

A (no frills) event emitter implementation. Create standalone emitter objects, or augment an existing one.

install

npm install --save emitz

usage

const emitz = require('emitz');

let Hipster = {
  name: 'Steve',
  jeanStyle: 'overly tight'
}

let emittableHipster = emitz(Hipster);

const disdainfulCallback = function () {
  console.log(`I've been listening to them for years`);
}

emittableHipster.on('upAndComingBandInTown', disdainfulCallback);

emittableHipster.emit('upAndComingBandInTown');

// --> I've been listening to them for years

api

#on(<event>, <handlerFn>)

Register a handler for a new or existing event

#emit(<event>, [...args])

Emit an event. All registered handler functions will be triggered / passed in any optional args.

#once(<event>, <handlerFn>)

Register a handler (will only be called on the first event emit)

#off(<event>, <handlerFn>)

Unregister an existing handler for an existing event

#nuke(<event>)

Remove ALL listeners from the specified event

tests

npm test

Lints the code, and runs tests with coverage report

todo / caveats

• Uses ES2015 throughout / requires node version > 6.9.4. Could pipe through babel to make backward compatible
• Needs integration tests

license

MIT