angular-cn/public/docs/_examples/lifecycle-hooks/ts/app/spy.component.ts

43 lines
969 B
TypeScript

// #docregion
import { Component } from '@angular/core';
import { LoggerService } from './logger.service';
import { Spy } from './spy.directive';
@Component({
selector: 'spy-parent',
templateUrl: 'app/spy.component.html',
styles: [
'.parent {background: khaki;}',
'.heroes {background: LightYellow; padding: 0 8px}'
],
directives: [Spy],
providers: [LoggerService]
})
export class SpyParentComponent {
newName = 'Herbie';
heroes: string[] = ['Windstorm', 'Magneta'];
spyLog: string[];
constructor(private logger: LoggerService) {
this.spyLog = logger.logs;
}
addHero() {
if (this.newName.trim()) {
this.heroes.push(this.newName.trim());
this.newName = '';
this.logger.tick();
}
}
removeHero(hero: string) {
this.heroes.splice(this.heroes.indexOf(hero), 1);
this.logger.tick();
}
reset() {
this.logger.log('-- reset --');
this.heroes.length = 0;
this.logger.tick();
}
}