angular2 promise example

Example code of the angular2 series route transition animation and angular2 example code Angular2's animation system gives you the ability to make a variety of animation effects, and strives to build an animation with the same performance as the native CSS animation.

The usage and example of Input and Output in Angular2 are described in detail. The Input and Output in angular2 can be compared with the instructions in AngularJS. Input is equivalent to binding the command value, either one-way (@) or two-way (= ). The value of the parent scope is "input" to the sub-scope, and then the sub-scope is processed. Output is equivalen

Angular2 pipeline Pipe and custom pipeline format data usage Example Analysis, angular2pipe This document describes how to use the Pipe of the Angular2 MPs queue and custom MPs queue format data. We will share this with you for your reference. The details are as follows: Pipeline (Pipe) can format the data according to the developer's wishes, and can also concate

Overview Learning Ng2, handwriting An example of feeling, of course, is classic two-way data binding. Environment "@angular/core": "^4.0.0" + typescript 2.3.4 Code presentation file organization Main files in Src/app directory:├──app.component.html├──app.component.ts├──app.module.ts├──twoway-bind/│└──twoway-bind.component.ts The first is the root module app.module.ts, because the Ngmodel directive is used in the twoway-bind.component.ts.So we must in

Promises is an abstraction that makes code asynchronous behavior more elegant, and it is likely to be the next programming paradigm for JavaScript, a promise that represents the outcome of a task, regardless of whether the task is completed or not. Native promise objects have been provided in some modern browsers, and they follow the promise/a+ standard. In jque

Promises is a kind of abstraction that makes code asynchronous behavior more elegant. it is likely to be the next programming paradigm of JavaScript. a Promise represents the task result, regardless of whether the task is completed or not. This document uses jQuery $. the Deferred object is used as an example to explain how the promise object handles the asynchro

Web page interaction becomes more and more complex, and JavaScript asynchronous operations become more and more complex. For example, a common ajax request needs to respond to the operation when the request is complete. The request is usually asynchronous and other operations can be performed by the user during the request process without page blocking, this Asynchronous interaction effect is quite helpful to users. However, it is unfriendly for devel

For example, explain how to use Promise in JavaScript, javascriptpromise Excerpt-the Parse JavaScript SDK now provides a Promises mode compatible with jquery that supports most asynchronous methods. What does this mean? You will understand it after reading the following. "Promises" represents the next great paradigm in javascript programs, but it is not easy to understand why they are so great. At its core,

the code run page, open the console to view the output. In fact, we can write the Getjson function super simple: function Getjson (URL) {return get (URL). then (json.parse); } Getjson returns a Promise that gets JSON and parses it. asynchronous operation of queues You can also concatenate "then" in sequence to perform an asynchronous operation. When you return from the "then" callback function, there is a little magic here. If you return a value,

JQuery's show and hide methods are well known and know that it can accept a callback function for execution after the animation completes. Like what: $ ('. Js-sam '). Hide (' slow ', function () {Alert (' You just hid Sam ');}); However, the JQuery 1.8 version also provides another writing style, namely promise– this Chinese translation is very difficult, now see there is a promise-I still continue to use

Promise processes multiple interdependent asynchronous requests (for example ). In projects, multiple interdependent asynchronous requests are often encountered. If there are three ajax requests, a, B, and c, B must depend on the data returned by a, and c needs the data returned by requests a and B. If the request is nested, it is naturally not desirable. As a result, the code is difficult to maintain and m