自定義指令
import {Directive, ElementRef, Renderer} from '@angular/core';
@Directive({
selector: '[green]',
})
class GreenDirective {
constructor(private _elementRef: ElementRef,
private _renderer: Renderer) {
_renderer.setElementStyle(_elementRef.nativeElement, 'color', 'green');
}
}
用法:
<p green>A lot of green text here</p>