随笔分类 - Angular
摘要：For example we have a component: For TodoAppComponent, we make 'TodoList' as 'viewProviders'. And inside TodoAppComponent, we have TodoInputComponent
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摘要：Content is what is passed as children. View is the template of the current component. The view is initialized before the content and ngAfterViewInit()
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摘要：*The children element which are located inside of its template of a component are called *view children *. On the other hand, **elements which are use
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摘要：We have looked at @ContentChild in article(http://www.cnblogs.com/Answer1215/p/6414657.html). Now let's how to query multi children by using @ContentC
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摘要：@ContentChild normally works with ngAfterContentInit lifecycle. @ContentChild is used for looking into child component's props. For example, we a app
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摘要：For example there is tow form compoennts on the page, and what we want to do is reusing the form component. Make to tow form behave differently, we ca
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摘要：The default core theme comes preinstalled and ready to go with every new project. Learn how to use some of the many helpful utility classes that are p
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摘要：Install: Create: Run: List all emulators: Run a different emulator: Livesync: Run with emulator: If you omit device 'ios', it will run both Android an
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摘要：
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摘要：From: To: So we create a index.ts file inside 'store' folder:
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摘要：To understand how change detection can help us improve the proference, we need to understand when it works first. There are some rules which can be ap
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摘要：Let's say the message list can Input (messages) from parent component, and what we want to do is when there are new message, we will scroll message li
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摘要：For the first Effect, will trigger another action: Second effect: will trigger another action:
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摘要：See the current implementaion of code, we have a smart component, and inside the smart component we are using both 'serivce' and 'store'. In the large
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摘要：When using Radio button for Tamplate driven form, we want to change to the value change and preform some action.
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摘要：import { Observable } from 'rxjs/Observable'; import 'rxjs/add/operator/map'; import 'rxjs/add/operator/catch'; import 'rxjs/add/observable/throw'; updatePassenger(passenger: Passenger): Observabl...
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摘要：What could be the issue, for example we have two list: Parent component: Child component: They both display list of "passengers". What will happens th
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摘要：The structure directive is just a sugar syntax of <template>. Such as: Equal to:
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摘要：You need to define a <template> to be able to use it elsewhere in your app as a TemplateRef. You can store these TemplateRefs in a Service and then ac
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摘要：Just like passing in an array to *ngFor, you can pass in any value into your structural directive so that it can render templates based on those value
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