EventEmitter & custom events & sub/pub https://repl.it/@xgqfrms/PPLabs-frontend-answers // 5.实现一个 EventEmitter类,这个类包含以下方法: // on(监听事件,该事件可以被触发多次) // once(也是监听事件,但只能被触发一次) // fire(触发指定的事件) // off(移除指定事件的某个回调方法或者所有回调方法) class EventEmitter { construc…

It's finally time to start building out our Appointment app. We're going to be using a collection and a collection view to display a list of appointments to the ornery but brilliant Dr. Goodparts. Let's start by creating a View Class named Appointmen…

jQuery官方文档:  http://learn.jquery.com/code-organization/concepts/ Code Organization Concepts(代码组织概念) 当你不再只是用jQuery为你的网站增添一些简单的功能,转向做一些成熟的客户端应用,那你就需要考虑如何组织你的代码.这章,我们将简要地介绍jQuery应用中几种常用的代码组织模式,探究RequireJS依赖管理以及构建系统. When you move beyond adding simple en…

David Posin helps you land that next programming position by understanding important JavaScript fundamentals. JavaScript is a fun, powerful, and important language with a low barrier of entry. People from all kinds of backgrounds and careers find the…

例子来源:http://www.runoob.com/nodejs/nodejs-event-loop.html http://www.runoob.com/nodejs/nodejs-event.html // 引入 events 模块 var events = require('events'); // 创建 eventEmitter 对象 var eventEmitter = new events.EventEmitter(); // 创建事件处理程序 var connectHandler…

In a real world scenario we obviously need to be able to communicate with an Angular Element embedded into our static HTML site. In this lesson we will learn how we can pass data into a Custom Element and how we can register to an Angular Element’s o…

目录: 前言 Node.js事件驱动介绍 Node.js事件 注册并发射自定义Node.js事件 EventEmitter介绍 EventEmitter常用的API error事件 继承EventEmitter 前言: 今天事儿太多了,没有发太多的东西.不好意思了各位. 本篇主要介绍Node.js中的事件驱动,至于Node.js事件概念的东西,太多了. 本系列课程主要抱着的理念就是,让大家慢慢的入门,我也尽量写的简单一点. 所以呢,本文事件驱动,大家的目标应该是:理解Node.js的事件驱动.会…

EventEmitter的基本用法: var EventEmitter = require("events").EventEmitter; var ee = new EventEmitter(); ee.on("someEvent", function () { console.log("event has occured"); }); ee.emit("someEvent"); emit方法可以触发多个同样的事件,比如我们的…

var EventEmitter = require('events').EventEmitter; var emitter = new EventEmitter(); console.log(emitter.getMaxListeners()); //设置可监听事件的最大个数 emitter.setMaxListeners(11); function work(who){ console.log(who + ' go to work') } //监听事件 emitter.on('do', wo…

Events Sending Native (DOM) Events anchorElement.click(); Sending Custom Events var event = document.createEvent('Event'); event.initEvent('my-custom-event', true, true); //can bubble, and is cancellable someElement.dispatchEvent(event); //modern; no…