Photo by Mohammad Rahmani on Unsplash
事件函式說明
| 變數 |
說明 |
| Emitter.on() |
綁定事件 |
| Emitter.emit() |
觸發事件 |
使用事件
// 載入事件
const EventEmitter = require('events');
class Emitter extends EventEmitter {};
const myEmitter = new Emitter();
// 建立自訂事件
myEmitter.on('my-event', (message) => {
console.log(`My event message: ${message}`);
})
setInterval(() => {
// 驅動事件
myEmitter.emit('my-event', 'Custom Log Message ' + new Date());
}, 3000);
參考資料
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