In my Angular4 Project, I have come across this snippet of code:
<div class="divider"></div>
<ng-content select=".nav-toggle"></ng-content>
Now, I am trying to figure out a way to display the divider only when there is content provided from outside the ng-content tag. Can anyone guide me on how to achieve this? I have searched extensively but couldn't find any relevant information.
There isn't a simple method to retrieve arbitrary projected content
@Component({
selector: 'item',
template: `
<div *ngIf="divider" class="divider"></div>
<div #wrapper><ng-content select=".nav-toggle"></ng-content></div>'})
class Item implements AfterContentInit {
@ViewChild('wrapper') wrapper:ElementRef;
divider:boolean = false;
ngAfterContentInit() {
console.log(this.wrapper.nativeElement.innerHTML); // or `wrapper.text`
this.divider = !!this.wrapper.nativeElement.children;
}
}
Check out Access transcluded content
If you are aware that the projected content is from a specific Angular component, or the element contains a specific template variable, you can utilize @ContentChildren() (refer also to angular 2 / typescript : get hold of an element in the template).
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