arbitrary-emitter

arbitrary-emitter

Event emitter with Map/Set sugar for browser and node.js apps

arbitrary-emitter allows to use arbitrary values as keys for your events

arbitrary-emitter is written in vanilla ES6, so maybe you want to transpile it before using it.

Project in active development, API may change

Create a new emitter

const emitter = arbitraryEmitter()

Emitter API

• emitter.add
• emitter.addOnce
• emitter.trigger
• Testing

add(key, method)

Add a listener for key which will trigger method function. key can be any type of value.

add returns unsubscribe method

const obj = {}
let unsubscribe = emitter.add(obj, () => doSomething())
emitter.trigger(obj) // will `doSomething`
unsubscribe()
emitter.trigger(obj) // won't do anything

addOnce(key, method)

Add a listener for key which will trigger method function just one time, then listener will be removed. key can be any type of value

const obj = {}
emitter.addOnce(obj, () => doSomethingOnce())
emitter.trigger(obj) // will `doSomething`
emitter.trigger(obj) // won't do anything

emitter.trigger(key)

Trigger methods binded to key

emitter.trigger(obj)

Testing

Node

npm test

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© 2016 Jacobo Tabernero - Released under MIT License