angular-docs-cn/public/docs/_examples/attribute-directives/ts/app/highlight.directive.1.ts

/* tslint:disable:no-unused-variable */
// #docregion
import { Directive, ElementRef, Input } from '@angular/core';

@Directive({ selector: '[myHighlight]' })
export class HighlightDirective {
    constructor(el: ElementRef) {
       el.nativeElement.style.backgroundColor = 'yellow';
    }
}