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How can I build a container component which can access child component like React's this.props.children?
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There is no way to pass props up to a parent component from a child component. We will revisit this caveat later in this tutorial. It's also important to note that React's props are read only (immutable). As a developer, you should never mutate props but only read them in your components.
By invoking them between the opening and closing tags of a JSX element, you can use React children for entering data into a component. The React children prop is an important concept for creating reusable components because it allows components to be constructed together.
in React you do
const Comp = ({ children }) => (
<div class="wrapper">{children}</div>
);
in Angular2 you do
@Component({
selector: 'comp',
template: `
<div class="wrapper"><ng-content></ng-content></div>
`
})
class Comp {}
You need to use @ViewChildren inside your component to access children placed inside the component.
Also, you want to decide where children are placed inside your template, you need to place an <ng-content></ng-content> somewhere in your template.
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