[英]Is there an Angular $scope event emitted after bindings have been applied to a controller?
[英]Do event emitters always fire one after the other ,in the order they have been emitted
var events = require('events');
var eventEmitter = new events.EventEmitter();
var ringBell = function ringBell()
{
console.log('ring ring ring');
}
var lockDoor = function lockDoor()
{
console.log("lock door");
}
eventEmitter.on("ringBell", ringBell);
eventEmitter.on("lockDoor", lockDoor);
eventEmitter.emit('ringBell');
eventEmitter.emit('lockDoor');
因此,首先發出ringBell事件,然后發出lockDoor事件。
我的問題是,在發出lockDoor事件之前,ringBell事件處理程序是否首先完成?
在這種情況下可以,但是如果您要在事件處理程序中添加更復雜的內容(例如異步db調用),則它將在完成ringBell
事件處理程序之前啟動lockDoor
事件處理程序。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.