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43 lines
704 B
43 lines
704 B
4 months ago
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# @antv/event-emitter
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> event-emitter for @antvis.
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## Install
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> npm i --save @antv/event-emitter
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## Usage
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```js
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import EE from '@antv/event-emitter';
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const ee = new EE();
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ee.on('mouseover', () => {});
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ee.once('click', () => {});
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ee.on('*', () => {});
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ee.emit('click', 1, 'hello', true);
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ee.off('click');
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```
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## API
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Simple and similar with `event-emitter`.
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- `on(evt: string, callback: Function)`: listen an event.
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- `once(evt: string, callback: Function)`: listen a event only once.
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- `emit(evt: string, ...parameters: any[])`: emit / trigger an event with parameters.
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- `off(evt?: string, callback?: Function)`: unsubscribe an event.
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- `getEvents()`: get all the exist events.
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