obso

Make an object observable.

import Emitter from 'obso/index.mjs'
class Something extends Emitter {}
const something = new Something()
something.on('load', () => {
  console.log('load event fired.')
})

obso

obso
- Emitter ⏏

Emitter ⏏

Kind: Exported class

emitter.addEventListener

Alias for on.

Kind: instance property of Emitter

emitter.emit(eventName)

Emit an event.

Kind: instance method of Emitter

Param	Type	Description
eventName	`string`	the event name to emit.
...args	`*`	args to pass to the event handler

emitter.on([eventName], handler, [options])

Kind: instance method of Emitter

Param	Type	Description
[eventName]	`string`	The event name to watch. Omitting the name will catch all events.
handler	`function`	The function to be called when `eventName` is emitted. Invocated with `this` set to `emitter`.
[options]	`object`
[options.once]	`boolean`	If `true`, the handler will be invoked once then removed.

emitter.removeEventListener(eventName, handler)

Remove an event listener.

Kind: instance method of Emitter

Param	Type	Description
eventName	`string`	the event name
handler	`function`	the event handler

emitter.once(eventName, handler)

Once.

Kind: instance method of Emitter

Param	Type	Description
eventName	`string`	the event name to watch
handler	`function`	the event handler

Load anywhere

This library is compatible with Node.js, the Web and any style of module loader. It can be loaded anywhere, natively without transpilation.

Node.js:

const Emitter = require('obso')

Within Node.js with ECMAScript Module support enabled:

import Emitter from 'obso/index.mjs'

Within an modern browser ECMAScript Module:

import Emitter from './node_modules/obso/index.mjs'

Old browser (adds window.Emitter):

<script nomodule src="./node_modules/obso/dist/index.js"></script>

Current Tags

0.7.0 ... latest (5 years ago)

obso

obso

Emitter ⏏

emitter.addEventListener

emitter.emit(eventName)

emitter.on([eventName], handler, [options])

emitter.removeEventListener(eventName, handler)

emitter.once(eventName, handler)

Load anywhere

Current Tags

11 Versions