Data Abstraction Hacks

Popcorn Hack #1

Create a child class of the class Appliance, and call it’s name() function

%%js
    class Mercedes {
        constructor(name) {
            this.name = name;
        }
        returnname() {
            return "I am a " + this.constructor.name + " and my model is " + this.name;
        }
    }
    // Below this name the class and cause it to inherit from the Appliance class
    class MercedesC63 extends Mercedes{
        constructor(name) {
            super(name);
    }
    }
var Benz = new Mercedes('C63');
console.log(Benz.returnname());

<IPython.core.display.Javascript object>

Popcorn Hack #2

Create child classes of the product class with items, and add parameters depending on what it is. An example is provided of a bagel.

%%js
    class Product{
        constructor(price,size,taxRate) {
            this.price = price;
            this.size = size;
            this.taxRate = taxRate;
        }   
        getPrice() {
            return this.price + this.taxRate * this.price;
        }
        product(){
            const className = this.constructor.name.toLowerCase();
            return "You are ordering a " + className + " with a price of " + this.getPrice() + " dollars, a size of " + this.size;
        }
    }
    class Bagel extends Product{
        constructor(price, size, taxRate, flavor) {
            super(price, size, taxRate);
            this.flavor = flavor;
        }
        getPrice(){
            return super.getPrice() * this.size;
        }
        product(){
            return super.product() + " and a flavor of " + this.flavor;
        }
    }
var sesameBagel = new Bagel(1.5, 2, 0.07, "sesame");
console.log(sesameBagel.product());

<IPython.core.display.Javascript object>

class Product {
    constructor(price, size, taxRate) {
        this.price = price;
        this.size = size;
        this.taxRate = taxRate;
    }
    getPrice() {
        return this.price + this.taxRate * this.price;
    }
    product() {
        const className = this.constructor.name.toLowerCase();
        return "You are ordering a " + className + " with a price of " + this.getPrice() + " dollars, a size of " + this.size;
    }
}

class Car extends Product {
    constructor(price, size, taxRate, brand, model, horsepower) {
        super(price, size, taxRate);
        this.brand = brand;
        this.model = model;
        this.horsepower = horsepower;
    }
    product() {
        return super.product() + ", brand: " + this.brand + ", model: " + this.model + " with " + this.horsepower + " horsepower";
    }
}

class MercedesC63AMG extends Car {
    constructor(price, size, taxRate, horsepower) {
        super(price, size, taxRate, "Mercedes", "C63 AMG", horsepower);
    }
    // You can override methods or add more specific ones here
}

var mercedesC63 = new MercedesC63AMG(70000, "medium", 0.10, 503);
console.log(mercedesC63.product());