Class Vehicle

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inaivanova1990 33 Точки

Class Vehicle

Здравейте!

Защо judge не ми приема задачата така? Не мога ли да използвам два конструктора?

https://pastebin.com/2aWpQnfM

Create a class with the name Vehicle that has the following properties:

– a string
– a string
– an object that contains:

– number (quality of the engine)
– number
– engine * power

– a number
– a function that receives fuel loss and decreases the fuel of the vehicle by that number

The constructor should receive the type, the model, the parts as an object, and the fuel

In judge post your class (Note: all names should be as described)

Example

Test your Vehicle class.

Input

Output

let parts = { engine: 6, power: 100 };

let vehicle = new Vehicle('a', 'b', parts, 200);

vehicle.drive(100);

console.log(vehicle.fuel);

console.log(vehicle.parts.quality);

100

600

let parts = {engine: 9, power: 500};

let vehicle = new Vehicle('l', 'k', parts, 840);

vehicle.drive(20);

console.log(vehicle.fuel);

820

Тагове:

22/05/2022 16:26:08 Fundamentals Module

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Axiomatik 2422 Точки

Best Answer

;-)

class Vehicle {
    // The constructor should receive the parts as an object !!!
    // (additional class for parts not demanded by requirements)
    // See input => let parts = { engine: 6, power: 100 }; !!!
    constructor(type, model, parts, fuel) {
        this.type = type;
        this.model = model;
        
        // fuel is already passed as a number
        // this.fuel = +fuel;
        this.fuel = fuel;
        this.parts = parts;

        // decorate parts with the calculated property quality
        this.parts.quality = parts.engine * parts.power;
    }

    drive(fuelLoss) {
        // return not required by the given examples
        // return this.fuel -= fuelLoss;
        this.fuel -= fuelLoss;
    }
}

22/05/2022 17:07:09

inaivanova1990 33 Точки

Благодаря ти, не ми беше ясен този синтаксис -

this.parts.quality = parts.engine * parts.power;

23/05/2022 09:34:49

Axiomatik 2422 Точки

parts.quality =>

parts – an object that contains:

engine – number (quality of the engine)
power – number
quality – engine * power

let parts = { engine: 6, power: 100 };

parts.quality not provided in the object itself, needs therefore
be added to the object by multiplying => engine * power

// decorate outside of Constructor
vehicle.parts.quality = engine * power;

// decorate inside of Constructor
this.parts.quality = parts.engine * parts.power;

: )

23/05/2022 15:49:18

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