angular 2 conditional class

Ngclass} From "Angular2/angular2",@Component ({ ' Todo-item-render '}) @View ({ directives: [Ngclass ], styles: [' . started{ color:green; } . Completed { text-decoration:line-through; } '], Template: ' [ng-class]= ' Todoinput.status ' >{{ Todoinput.title}} '}) Export class todoitemrender{ @Input () Todoinput:todomodel;}Many compon

package. A node_modules directory is generated. Put these packages here. Now, the Environment setup task has been completed. The following uses FlexGrid as an example to describe how to support Angular 2. 2. How to Use table controls supporting Angular 2 1. HTML On the HTM

What are the eight main construction blocks of Angular 2 applications and angular application structures? Previous words: I recently read quickstart on the official website during Angular 2 and National Day, and wrote an article, just a hello world demo. Later, I continued t

When you create a form in Angular 2, you can easily get all of the values from the form using Controlgroup and Controls. Bind [Ng-form-model] to the Form bind to Controlgoup Bind [Ng-form-control] to the Input bind to Gontrol Import {Component, View, Form_directives, Controlgroup, Control} from ' Angular2/angular2 '; @Component ({selector:' Field-form '}) @View ({directives: [for

The decorator allows you-pass values into your so, can change the value of the the Directive each time @Input @Directive That's it is used. Using @Input makes your directives much more flexible and reusable so they can adapt to many different situations. Import {Directive, Input, hostbinding} from @angular/core [getinput] " }) export class Getinputdirective {@Input ( " getinput " get In

Parse Angular 2 + style binding mode and angular Style Introduction After ngx (angular 2 +) is developedngxA year and a half have passed. At the beginning of development, angular2 RC was used. Now angular5 is available! Ngx is a component-based framework from the beginning o

You need to define a to is able to use it elsewhere in your app as a TemplateRef . You can store these TemplateRef s in a Service and then access them the from any @Directive or in @Component your app.We want to create a service and a component together to store all the templates.ServiceImport {injectable, templateref} from "@angular/core"; @Injectable () Export class Templatesservice { New map();}Compo

1 DOCTYPE HTML>2 HTML>3 HeadLang= "en">4 MetaCharSet= "UTF-8">5 title>title>6 Head>7 8 Common directives (ii)9 * Ng-class: Dynamic reference defined style {aclass:true, bclass:false}Ten * Ng-style: Dynamically referencing the style object specified by JS {color: ' red ', background: ' Blue '} One * Ng-click: Tap Listen, value is function call, can pass $event A * Ng-mouseenter: The mouse is moved into t

Just like passing in a array to*ngFor, you can pass in any value into the your structural directive so the it can render templates based on those values. It ' s crucial to understand how the*directiveSyntax expands into aand adds a custom@InputBased on the syntax, you can use your own data. The syntax looks like:*three= "Let message from Messages">{{message.to}}-{{ Message.message}}h2>For template It would looks like:[Threefrom]= "Messages">template> It Combimes ' three ' and ' from ' keywords.S

In front of the words: recent free time learning angular 2, national day time to see the official website of QuickStart, also wrote an article, just a Hello World demo. After continuing to read a project tutorial, just start still can keep up, when the back is more confusing. Indeed, for beginners, it is more troublesome to understand a framework. So stop the project and start looking at how angular's overa

Angular ng-class explanation and instance code, angularng-class In the previous experiences of Angularjs development, we mentioned that in angular development, angular controller never contains DOM elements (html/css) and requires a simple POJO (plain object javascript objec

does not know how to run the. ts file, so we need to compile the. ts file into a. js file.// / // /import {bootstrap} from "angular2/ Platform/browser "Angular2/core"; @Component ({ ' hello-world ', Template: ' World '}) class HelloWorld {} bootstrap ( HelloWorld);TypeScript is a type of JavaScript. In order to be able to use angular in our browser, we need to tell TypeScript w

; defined at module loadtime selector: ' Contacts-header ' , ' Header.component.html ', styleurls: [' Header.component.css ']}) Export class Headercomponent Implements OnInit {}JSPM://If We decide to use JSPM, we use the Typescriptoptions configuration format in the Config.js file:Systemjs.config ({typescriptoptions: {module:"Commonjs", Emitdecoratormetadata:true, Experimentaldecorators:true}, Transpiler:false, BaseURL:"/dist", Map: {app:' SRC ', T

collapse or expand. `}) Export class App {} @NgModule ({declarations: [app, Collapseonclick], imports: [Browsermodule], Bootstrap: [App]}) Export class Appmodule {}platformbrowserdynamic (). Bootstrapmodule (appmodule);Collapsed-on-click.ts:Import {Directive, Hostlistener, hostbinding} from "@angular/core"; @Directive ({selector:' [Collapse-on-click] ',

In the previous ANGULARJS development, we said that in angular development angular controller never contains DOM elements (HTML/CSS), and a simple controller is needed in Pojo (plain object JavaScript object), completely isolated from view (the responsibility of interacting angularjs frameworks.) But the most common element in some projects that controller involves DOM is defining a variable on the controll

: { provide:translateloader, usefactory: (Createtranslateloader), deps: [Http] } }),Implementing AOT Compilationfunction Createtranslateloader (http:http) { returnnew translatehttploader (HTTP, './assets/ i18n/', '. JSON ');}Translatehttploader loading "/assets/i18n/[lang].json" file, [lang] for language file nameTranslateServiceImport {Component} from ' @angular/core '; import {Transla

= "settingscontroller1 as Settings" One way to inject $ scope into the controller: NG-controller = "settingscontroller2" the second choice is more common in the angular community. It is generally used for templates and guides. However, property controllers are directly bound to avoid range. When multiple controllers control elements with the same name, use controller as to make your template more obvious. If you are writing your controller

In the previous experiences of Angularjs development, we mentioned that in angular development, angular controller never contains DOM elements html/css). In the controller, a simple POJOplain object javascript object is required ), fully isolated from the view to interact with the angularjs framework. However, in some projects, the most common element involved in the controller DOM is to define a variable o

())}}}}}); We add the scope attribute to the command and print the content of tele and iele during the printing process. The result is as follows: We can see that the elements printed in the compile phase do not have the class attribute, but are printed in the pre-link and post-link phases, the class attribute is ng-scope ng-binding. The reason is: The elements obtained in the compile phase are telement, t

. You need to use the templateurl attribute. template usage is complicated and will be explained in the next article. If neither template nor templateurl is specified, this command does not modify or replace the content of the command element. for example, angular learning notes (19th)-command to modify dom Let's take a look at the demo: HTML: JS: /* 20.1 command */var dirappmodule = Angular. module ('dir