forked from zhurui/management
89 lines
1.8 KiB
Markdown
89 lines
1.8 KiB
Markdown
# tiny-emitter
|
|
|
|
A tiny (less than 1k) event emitter library.
|
|
|
|
## Install
|
|
|
|
### npm
|
|
|
|
```
|
|
npm install tiny-emitter --save
|
|
```
|
|
|
|
## Usage
|
|
|
|
```js
|
|
var Emitter = require('tiny-emitter');
|
|
var emitter = new Emitter();
|
|
|
|
emitter.on('some-event', function (arg1, arg2, arg3) {
|
|
//
|
|
});
|
|
|
|
emitter.emit('some-event', 'arg1 value', 'arg2 value', 'arg3 value');
|
|
```
|
|
|
|
Alternatively, you can skip the initialization step by requiring `tiny-emitter/instance` instead. This pulls in an already initialized emitter.
|
|
|
|
```js
|
|
var emitter = require('tiny-emitter/instance');
|
|
|
|
emitter.on('some-event', function (arg1, arg2, arg3) {
|
|
//
|
|
});
|
|
|
|
emitter.emit('some-event', 'arg1 value', 'arg2 value', 'arg3 value');
|
|
```
|
|
|
|
## Instance Methods
|
|
|
|
### on(event, callback[, context])
|
|
|
|
Subscribe to an event
|
|
|
|
* `event` - the name of the event to subscribe to
|
|
* `callback` - the function to call when event is emitted
|
|
* `context` - (OPTIONAL) - the context to bind the event callback to
|
|
|
|
### once(event, callback[, context])
|
|
|
|
Subscribe to an event only **once**
|
|
|
|
* `event` - the name of the event to subscribe to
|
|
* `callback` - the function to call when event is emitted
|
|
* `context` - (OPTIONAL) - the context to bind the event callback to
|
|
|
|
### off(event[, callback])
|
|
|
|
Unsubscribe from an event or all events. If no callback is provided, it unsubscribes you from all events.
|
|
|
|
* `event` - the name of the event to unsubscribe from
|
|
* `callback` - the function used when binding to the event
|
|
|
|
### emit(event[, arguments...])
|
|
|
|
Trigger a named event
|
|
|
|
* `event` - the event name to emit
|
|
* `arguments...` - any number of arguments to pass to the event subscribers
|
|
|
|
## Test and Build
|
|
|
|
Build (Tests, Browserifies, and minifies)
|
|
|
|
```
|
|
npm install
|
|
npm run build
|
|
```
|
|
|
|
Test
|
|
|
|
```
|
|
npm install
|
|
npm test
|
|
```
|
|
|
|
## License
|
|
|
|
[MIT](https://github.com/scottcorgan/tiny-emitter/blob/master/LICENSE)
|