install
@npm: npm install @liuyunjs/eventemitter -S
@yarn: yarn add @liuyunjs/eventemitter
Quick
import EventEmitter from '@liuyunjs/eventemitter';
const eventemitter = new EventEmitter();
eventemitter.on('start', (...args) => {
console.log('start', ...args);
});
eventemitter.once('once', (...args) => {
console.log('once', ...args);
});
eventemitter.emit('start', 'hello', 'world');
eventemitter.emit('once', 'hello', 'world');
eventemitter.off('start');