difference between angular 2 and angular 4

Heros.ts:Import {Component} from "@angular/core"; Const Heroes=[{ID:1, Name: ' Superman '}, {ID:2, Name: ' Batman '}, {ID:5, Name: ' Batgirl '}, {ID:3, Name: ' Robin '}, {ID:4, Name: ' Flash '}]; @Component ({selector:' Heroes ', Styleurls: [' Heroes.component.css '], Template: 'ngfor="Let hero of heroes; let i = index; Trackby: Trackby (Hero); Let Is

]= "{' Height ': ' Calc (100%-64px) ', ' width ': ' 100% ', ' overflow ': ' Auto ', ' border-color ': ' #e0e0e0 ', ' Color ': ' #333333 ' , ' font-size ': ' 13px '} "> P-tree> Div> Divclass= "Col-2"style= "Padding:0px;margin-top:120px;text-align:center"> Divstyle= "margin-bottom:10px"> Buttontype= "button"class= "btn btn-clickstyle radius Pointer"(click)= "moverightcondition ()"> Icla

Two-way binding still exists in Angular 2 and Ng-model makes it simple. The syntax is a combination of the [input] and (output) syntax to represent, the data is being pushed out and pulled I N.Import {Component} from ' Angular2/core './todoservice '; @Component ( {' todo-input ', Template: ' [(Ngmodel)]= "Todomodule"> '}) Export class todoinput{ todomodule:string; Constructor (

This lesson discusses if and how to add dependencies, resolved by Angular ' s DI, to factory providers. The example used in this lesson builts upon the previous lesson on understanding factory providers.For example, the Loggerprovider need-to-use Consoleservice, as-you-put loggerprovider into ' providers ' array, we also Need to provide dependence which refer to Consoleservice, the "Do"providers: [ todoservice, consoleservice, , { = =

The application is simple and to build a color picker:When click the Rect box, it'll check the color value below and title color would also change.Color-picker.ts:Import {Component, Output, Eventemitter, Input} from "@angular/core"'./constants '; @Component ({ ' Color-picker ', moduleId:module.id, ' color-picker.component.html ') export class colorpicker{ @Input () color:string; @Output (new eventemitter (); = RED; = BLUE; C

{clockcomponent} from './clock'; @Component ({selector:'app', directives: [Clockcomponent], Template: '" Number"Value="0"> "Click$.next (Inputnum.value)">Update"Time | Async "> `}) ExportclassApp {click$=NewSubject (). Map ((number)=({type:hour, payload:parseint (number)})); seconds$= Observable.interval ( +). Mapto ({type:second, payload:1}); Time Constructor (Store:store) { This. Time = store.Select('Clock'); Observable.merge ( This. click$, This. seconds$). Subscribe (Store.dispat

Angular 2 Templates Use a special the Async pipe to being able to render out observables. This lesson covers the syntax used to create a Observable in Angular 2 and then to render it out in the template.Import {Component} from 'Angular2/core'; import {bootstrap} from 'Angular2/platform/browser'; import {Observable} fro

So what to does lazy loading for router in Angular 2.The Nomarl-to-write a router in Angular 2:You are simplecmp and usercmp as child components. You also import {simplecmp, usercmp} from ' xxxxxx '.It won't be lazy loaded. Because you already has the reference to the child component.But it turn off to being very easy

1. Default angular request header: Here, accept and X-requested-with are the default configurations of $ HTTP. 2. Modify the default request header: (1) Global modification (entire module) Use $ httpprovider dependency VaR MyApp = Angular. module ('myapp', []); MyApp. config (function ($ httpprovider) {console. log ($ httpprovider. defaults. headers. common) //

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 components require different styles based on a set of conditions.

Angular Learning (2): Controller definition summary, angularcontroller The above section summarizes the ng-view application, and separates the O M background into two interfaces for logical Controller processing. This article will summarize the knowledge used by the Controller in the project: $ Scope: scope object, which only represents the current Controller object. All objects in this scope are declared

} from './vehicle-list.component'; import {vehiclecomponent} from './vehicle.component'; import {Vehicleservice} from './vehicle.service'; @Component ({selector:'Story-vehicles-root', Template: '', directives: [Router_directives], providers: [Vehicleservice]}) @RouteConfig ([{path:'/', Name:'Vehicles', Component:vehiclelistcomponent, Useasdefault:true}, {path:'/:id', Name:'Vehicle', component:vehiclecomponent}]) ExportclassVehiclescomponent {}----------------The list component, set Routerlink:ul

(2) Design The default constructor, that is, when the parameter is not specified, the default side length is 1. The required test functions are:int main (){Triangle Tri; //Call the default constructor, when no parameters are specified, the default side length is 1;Tri.showmessage ();return 0;}#include Operation Result:Week four 13 constructors for angular classes-2