2bd9946bda
* example(dart/toh-4,5): getHeroesSlowly() to return getHeroes() Have `getHeroesSlowly()` delay and then return the value of `getHeroes()`. This makes it easier for user’s performing the tutorial to keep this slower method as they evolve toh-5 into toh-6. * example(ts/toh-4,5): getHeroesSlowly() to return getHeroes() Have `getHeroesSlowly()` delay and then return the value of `getHeroes()`. This makes it easier for user’s performing the tutorial to keep this slower method as they evolve toh-5 into toh-6.
28 lines
715 B
TypeScript
28 lines
715 B
TypeScript
// #docplaster
|
|
// #docregion
|
|
// #docregion just-get-heroes
|
|
import { Injectable } from '@angular/core';
|
|
|
|
import { Hero } from './hero';
|
|
import { HEROES } from './mock-heroes';
|
|
|
|
@Injectable()
|
|
export class HeroService {
|
|
// #docregion get-heroes
|
|
getHeroes(): Promise<Hero[]> {
|
|
return Promise.resolve(HEROES);
|
|
}
|
|
// #enddocregion get-heroes, just-get-heroes
|
|
// #enddocregion
|
|
// See the "Take it slow" appendix
|
|
// #docregion get-heroes-slowly
|
|
getHeroesSlowly(): Promise<Hero[]> {
|
|
return new Promise<Hero[]>(resolve =>
|
|
setTimeout(resolve, 2000)) // delay 2 seconds
|
|
.then(() => this.getHeroes());
|
|
}
|
|
// #enddocregion get-heroes-slowly
|
|
// #docregion
|
|
// #docregion just-get-heroes
|
|
}
|