ngif angular2

See angular released the official version, echocardiography ready to test under. Looking at the official website tutorial, using the CLI to create the project, type at the command line: Installing CLI NPM install-g ANGULAR-CLI If you have installed a previous version, perform the following command to update: NPM uninstall-g ANGULAR-CLINPM Cache CleanNPM install-g Angular-cli@latest Older versions of the CLI used SYSTEMJS and the most recent creation, based on Webpack builds. Older version

Attribute declarations-Exposing member variablesA property is a calling interface that a component exposes to the outside world, and the caller customizes the behavior and appearance of the component by setting different property values:Adding a property interface to a component in ANGULAR2 is straightforward, just declare the member variable of the component in the Properties property of the Component annotation:1 // 2@Component ({3 properties:[

3 [ng-switch-when]= " Variable >...4 5 ng-switch-when= "Constant" >...6 NgswitchdefaultThe Ngswitchdefault directive must be applied on the child template element of the Ngswitch directive, and when there is no ngswitchwhen instruction match, Ngswitch will display the contents of the template:1 [Ng-switch]= "..." >2 ng-switch-default= "" >...3 It is important to note that the Ngswitch series directives are ANGUALR2 preset directives that need to be used prior to use in the t

The whole new focus on ASP. NET core and angular2 is not so good. It's a big difference from abroad.I also encountered a lot of problems when I tried to do this integration. Finally, we can find out by consulting a lot of data. I think there will be similar people who have the same problem, so they recorded a video, interested can be followed step by point to do it again. You know.The video publishing address is:Because the computer fever slowed down

Material (including Material Icon) in Angular2, materialangular2 1. Introduce the material npm package npm install @angular/material @angular/cdk 2. Create a ebiz-material.module.ts to facilitate management of modules that introduce material ng g module ebiz-material -app=ebiz-ui 3. Introduce ebiz-material.module.ts in the root module of the app import { EbizMaterialModule } from './ebiz-material/ebiz-material.module';@NgModule({ imports: [..., EbizM

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 concatenate multiple pipelines. Pure Pipe and Impure

Time is limited, nonsense will not say more, directly on dry!Let me introduce you to a hole I met, if you also met, then congratulate you, you will find the answer: ANGULAR2/ANGULAR4 how to request to download the binary Excel file via the $http post method? (Angular1 self-Baidu)Problem Description:Back in the background is a binary Excel stream, with the request header as follows:access-control-allow-origin:*Cache-control:privateContent-disposition:a

Recently learned angular2, so from the official website Hero example began to learn. After a few twists and ends, this example is finished. Profits are shallow. Personal advice before you start learning An example, you can learn some concepts, modules, components, decorators ... that help you to write the logic of the code. Tell me about the problems I encountered during my studies:1. First attach the official Chinese tutorial Link: https://www.angula

First, prefaceSome time ago, the company has an app project needs to support different platforms, so the use of Ionic2 + Cordova + ANGULAR2, in the process of building the environment encountered a lot of problems, just recently have time to sort out.Second, the development environment constructionRefer to this site steps to build:Https://github.com/DonaldTdz/Ionic2QuickStartNote: Nodejs to install 6.0 +lts the latest version, do not install 8. Latest

In the ANGULAR2 framework of the general Interactive parsing JSON is to use the service, in fact, in addition to the service is still a lot of, today first write the simplest front-end data interactionHmm ~ ~First, I'll create the service directly under the app package.All rightWhat about here? Angular2 has a well-encapsulated HTTP interface directly referenced (to, here HTTP seems to have been abolished,,

Use ANGULAR2 and restful webapi to develop spa-type enterprise Applications-Part 4 MultiLanguageAuthor: techcoaching, translation: Falling iceThe originalNote: The first translation of the article, the wrong translation of the place also please forgive me, welcome to point out to improve. This article describes how to use multiple languages (i18n) in Angular2Download source from GitHub all articles in the series Overview Add new role Project structure

ANGULAR2 's dependency injection contains too much content, one of the key points is the injector, and the injector is very difficult to understand, today we do not delve into the contents of the injector, we can refer to the official documentation, we are today the level of the injector. That is, the container in which the component gets the service chooses which one to specify. Let's briefly introduce a background: There are 3 components appcompon

Set up the. Net Core + Angular2 environment, coreangular2Environment setup: 1) node. js version> 5.0, NPM version> 3.0, TypeScript version> 2.0 (the latest version is enough) 2) install NTVS 1.2 (node tools for vs), TSVS dev 1.4 (TS for) 3) Build a package. json, tsconfig. json, gulp. js File 1. package. json { "name": "template.angular2", "version": "1.0.0", "licenses": [ { "type": "MIT", "url": "https://github.com/angular/angular.io/

Providers: [{provide:parent, Useexisting:forwardref (() = parentcomponent)}] The parent is the provider's token, and parentcomponent is the type of the alias provider that injects the type provider into the parent component's injector, and the child component can use the parent token as the constructor parameter type to inject the service. Gets the parentcomponent. Parentcomponent refers to itself, causing a circular reference, and must use a forward reference Forward

have to configure the menu to click in, open the layouts directory under the full-layout.component.html, add under Componentsclass="nav-item"class="nav-link " Routerlinkactive="active" [routerlink]="['/components/myinfo '] "class="icon-star">Why would you like to open the full-layout.component.html file plus menu? And above is the same problem.The running effect is:Then add other pages to the same principle.Now to answer the above question:Path"', Component:fulllayoutcomponent,data: {title:'Ho

ANGULAR2 Dependency injection contains too much content, one of the key points is the injector, and the injector is very difficult to understand, today we do not delve into the content of the injector, you can refer to the official documentation, we today to the level of the injector.That is, the container that gets the service for the component chooses which one is specific.Let's start with a background: There are 3 components appcomponent root compo

| async"> a[Routerlink]= "Hero.id"routerlinkactive= "Active"[Routerlinkactiveoptions]= "{exact:true}">{{Hero.name}}a> Li> we can also do [routerlink]= "['/heros ', hero.id]", this would point to "HEROS/1"; If you do: [routerlink]= "[' heros ', hero.id]", this would point to "HEROS/HEROS/1" Since we is already in Heros MoD Ule We just need to does [routerlink]= "Hero.id", point to "HEROS/1 " -ul>Heros.component.ts:Import {Component, OnInit} from '@angular/core'; import {Starwarsservice} fro

Ngformcontrol-Binding an existing Control objectUnlike the ngcontrolname directive, Ngformcontrol binds an existing control/control object to a DOM element. You can use the Ngformcontrol directive when you need to initialize an input value .In the following code, using the Ngformcontrol directive to bind a DOM element to the member variable of the component Ezcomp movie, we need to create the control object first in the constructor :1 @View ({2 //to bind an INPUT element to a control object

// 2 seconds );For the first time, we have used this interface several times in our components:Src/app/app.component.tsHeroes:hero[]; Selectedhero:hero;Src/app/hero-detail.component.tsExport class Herodetailcomponent { Hero:hero;}So far, our service is even written!Using the serviceLet's test the service we've written in the component:Src/app/app.component.ts (partial code)Import {Heroservice} from './hero.service ';Src/app/app.component.ts (partial code)Providers: [Heroservice]Src/a

Import {elementref} from "@angular/core";Constructor (private element:elementref) { //Now, we can reference to:this.element}This.element.nativeElement ('. Js-banner-container '),ElementrefProvides access to the underlying native element (DOM element).Import {aftercontentinit, Component, elementref}From' @angular/core '; @Component ({Selector' App ',Template export class app implements aftercontentinit {node:string; constructor (Private Elementref:elementref) {} ngaftercontentinit () {const tmp