angular-cn/public/docs/_examples/dependency-injection/ts/app/car/car.ts

33 lines
681 B
TypeScript

// #docregion
import { Injectable } from '@angular/core';
// #docregion engine
export class Engine {
public cylinders = 4; // default
}
// #enddocregion engine
// #docregion tires
export class Tires {
public make = 'Flintstone';
public model = 'Square';
}
// #enddocregion tires
@Injectable()
// #docregion car
export class Car {
//#docregion car-ctor
public description = 'DI';
constructor(public engine: Engine, public tires: Tires) { }
// #enddocregion car-ctor
// Method using the engine and tires
drive() {
return `${this.description} car with ` +
`${this.engine.cylinders} cylinders and ${this.tires.make} tires.`
}
}
// #enddocregion car