angular 2 debugging

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

Iv. ng-if, Ng-show, Ng-switchReference: Angularjs's learning--ng-show/ng-hide/ng-if and Ng-switchSimple summary:Ng-show and ng-hide simply show or hide the DOM nodes, and the nodes will still be loaded and renderedNg-if, like Ng-show, receives a bool, but when Ng-if is false, the DOM node it controls is not created or the previous DOM node is destroyed, which speeds up the DOM loadingNg-switch omitted the Tab tab trouble, it listens to a variable, the variable value is a, a control of the DOM no

ES6 tool chain original: Hui Zhi networkIt's not easy to make the Angular2 app run, because it uses too many technologies that are not supported by the current mainstream browser. So, we need a tool chain:ANGULAR2 is the future-oriented technology, requires the browser to support the es6+, we have to try now, we need to add some shims to erase the current browser and ES6 differences: SYSTEMJS-Universal Module Loader supports JS module loading in various formats such as AMD, CommonJS, ES

Controlgroup Description: My understanding of the directive is to bind the Controller group in the HTML template, and then operate these corresponding modules inside the component class, to see the code below, a look at it.Our root app Componentimport {Component, View, Control, Controlgroup, ControlArray, validators, Core_directives, Form_directives} from ' Angular2/angular2 ' @Component ({selector: ' My-app ',}) @View ({Template: ' 　　Angular

Property Binding is the Bind property not attribute!Import {Component, Input, Output, eventemitter} from ' Angular2/core '; @Component ({selector:' Hero-item ', Styles: ['. Active {color:red} '], Template: 'class.active]= "IsSelected"[Attr.aria -label]= "Hero.name"(click)= "Selecthero (Hero)" >{{Hero.name}} `})//Export Class heroitem{label= "This is a super hero"; IsSelected=false; @Input () hero; @Output () Changed=NewEventemitter (); Constructor () {} Selecthero (Hero) { This. Changed.em

TypeScript is used heavily as we build to our application, but TypeScript isn ' t required. If you want to Inject a Service without using TypeScript, you'll need to understand the decorator @Inject .Import {Component, View, Inject} from "Angular2/angular2"; Import {Todoservice} from"./todoservice"; @Component ({selector:' Todo-input '})//Define a ref by using XXX-YYY//Reference a ref by using XXXYYY@View ({Template: ' `}) Export class todoinput{ todoservice; Constructor (//Public Todoserv

When creating a service, need to inject the sercive into the bootstrap ():Import {bootstrap, Component, View} from "Angular2/angular2""./todoinput"; "./todoservice" ; @Component ({ selector:' app '}) @View ({ directives: [Todoinput], Template: ' '}) class app{}Bootstrap (APP, [Todoservice]) ;Todoservice.jsExport class todoservice{ = []; Addtodo (value:any):void { this. Todos.push (value); }}Inputtodo.js:Import {Component, View} from "Angular2/angular2"; Imp

RxJS allows combine streams in various ways. This lesson shows do you have a click stream and combine it with a store stream to use a value from the store inside a Reducer.The logic is when we click the Recall button, it'll reset all the people's time to the current time.First, bind the click event to recall$:"recall$.next ()">RecallNew Subject ();We get the latest time from the time Stroe:Constructor (store:store) { This. Time = store.Select('Clock'); This. People = store.Select('people'); Obs

Showing how can expose properties on your controllers to access them using #refs inside of your template.// letterselect.ts ' angular2/angular2 '; @Component ({ ' letter-select '}) @View ({ directives: [Ngfor,form _directives], Template: ' for = "#letter of letters" >{{letter}} '}) Export class Letterselect { = [' E ', ' s ', ' W ']; Selectedletter = ' E '; Constructor () { }}Todolist.tsImport {Component, View, Ngfor, form_directives} from ' Angular2/angular2 ';

Angular's core MVVM, here's a look at the MV (data to view).Execute the above code, we use settimeout delay two seconds to update the data (M), our view (V) has not changed.The data actually changed , but our view (V) didn't refresh in time because the native settimeout didn't have the ability to refresh.Angular provides us with a settimeout service, $timeout, the need to introduce the service in AAA!We bind a click event to an element with ID AAA and change the name value to hi when a click occ