随笔分类 - Angular
摘要：Observable.merge allows you take two different source streams and use either one of them to make changes to the same state of your data. This lesson s
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摘要：While Angular 2 usually uses event handlers to manage events and RxJS typically uses Observable.fromEvent, a good practice when using Angular 2 and Rx
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摘要：Instead of simply pushing numbers on a timer into the template, now we'll move on to pushing actual Dates. We'll still use the Async pipe, but we'll a
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摘要：Angular 2 templates use a special Async pipe to be able to render out Observables. This lesson covers the syntax used to create an Observable in Angul
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摘要：Create a Firebase Servcie: Display the list:
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摘要：Benefit to use child router is Angualr 2 then can lazy load the component on demand. Define a child router by adding three dots `/characters/...`: So
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摘要：When we define router in Angualr 2, we use @RouteConcfig() When we want to display component, we use <router-outlet> When we want to navigate to compo
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摘要：You can also use Promise for http: So for the service, you need to call toPromise() method: Then in your controller, you can get the Promise back: But
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摘要：Let's see how to track index when we use 'ngFor: <li *ngFor="#hero of heros | async; let i = index"> <hero-item [hero]="hero" (changed)="thisHero = $e
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摘要：Property Binding is bind property NOT attribute! So 'class' is attribute on DOM, but 'class.active' is an property. 'aria-label' is attribute, so need
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摘要：In Angular2, sometime we use @Output to pass data to parent component, then parent may pass the data down to another child component. When you want to
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摘要：When you want to access child component's method, you can use @ViewChild in the parent: Parent Component: Child Component:
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摘要：Async Pipe: The Asynce pipe receive a Promise or Observable as input and subscribes to the input, evetually emitting the value(s) changes arrive. In t
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摘要：TodoList.ts: TodoItemRender.ts: Current we pass [todo] to the itemRender from List, we actually can give @Input('name'): TodoList.ts: TodoItemRender.t
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摘要：Link: https://angular.io/docs/js/latest/api/core/OnInit-interface.html, https://www.youtube.com/watch?v=bY92HFyaBvo exported from angular2/core define
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摘要：To use http, we need to import the HTTP_PROVIDER, so that we can inject http to other component: simple-request.ts:
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摘要：This lessons implements the Search Pipe with a new SearchBox component so you can search through each todo. It also demonstrates the patterns used for
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摘要：Link: Blog Single transclude: Multi-translcude:
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摘要：We want the start-pipe more flexable to get param, so when using it, we pass a second param as status: It will be handled as a second param which is a
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摘要：When a Todo property updates, you still must create a new Array of Todos and assign a new reference. This lesson walks you through refactoring from th
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