7-1/ class 연습

연습문제 1

아래 자바스크립트를 타입스크립트로 바꾸시오

function Car(name) {
    this.name = name;
    this.speed = 0;
 
    this.honk = function() {
        console.log("부우우웅");
    };
 
    this.accelerate = function(speed) {
        this.speed = this.speed + speed;
    }
}

var car = new Car("BENZ");
car.honk();
console.log(car.speed);
car.accelerate(10);
console.log(car.speed);

1차

class Car {
    constructor(public name: string) {
    }
    public speed: number = 0
    public honk(): void {
        console.log('부우우웅')
    }
    public accelerate(speed) {
        this.speed = this.speed + speed;
    } 
}

const car = new Car("BENZ");
car.honk();
console.log(car.speed);
car.accelerate(10);
console.log(car.speed);

2차

class Car {
    constructor(private name: string) {
    }
    private _speed: number = 0
    public honk(): void {
        console.log('부우우웅')
    }
    public accelerate(speed) {
        this._speed = this.speed + speed;
    } 
    
    get speed(): number {
        return this._speed;
    }
}

const car = new Car("BENZ");
car.honk();
console.log(car.speed);
car.accelerate(10);
console.log(car.speed);

3차

interface ICar {
    honk(): void;
    accelerate(speed: number): void 
}
class Car {
    constructor(private name: string) {
    }
    private _speed: number = 0

    public honk(): void {
        console.log('부우우웅')
    }

    public accelerate(speed) {
        this._speed = this._speed + speed;
    }
    get speed(): number {
        return this._speed;
    }
}

const car = new Car("BENZ");
car.honk();
console.log(car.speed);
car.accelerate(10);
console.log(car.speed);