Angular2 Dart - Get Text inside Angular2 Component

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滥情空心 2021-01-06 13:12

I\'ve got an item component which I use inside other components, the item component typically looks like this:



        
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  •  星月不相逢
    2021-01-06 13:43

    With @ContentChild() or @ContentChildren() you can only query for components and directives by passing the type of these components or directives as parameter or you can query for template variables.

    If you have

    
      
    the-text
    `

    then you can query for the div with

    @ContentChild('someVar') ElementRef someVar;
    

    If you don't want the user of your component to require to wrap the content with an element and add a specific template variable you can use a wrapper element around

    @Component(
        selector: 'item',
        //providers: const[String],
        template: '
    ') class Item implements AfterContentInit { @ViewChild('wrapper') ElementRef wrapper; @Input() String type = "type-goes-here"; @override ngAfterContentInit() { print(wrapper.innerHtml); // or `wrapper.text` } }

    Not sure yet if this issue will make this easier https://github.com/angular/angular/issues/8563

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