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classes.js
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77 lines (63 loc) · 1.65 KB
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// Copy and paste your prototype in here and refactor into class syntax.
/*
function CuboidMaker(attributes) {
this.length = attributes.length;
this.width = attributes.width;
this.height = attributes.height;
}
CuboidMaker.prototype.volume = function() {
return this.length * this.width * this.height
};
CuboidMaker.prototype.surfaceArea = function() {
return 2 * (this.length*this.width) + (this.length*this.height) + (this.width*this.height);
}
const cuboid = new CuboidMaker({
length: 4,
width: 5,
height: 5
});
*/
class CuboidMaker {
constructor(attributes) {
this.length = attributes.length;
this.width = attributes.width;
this.height = attributes.height;
}
volume() {
return this.length * this.width * this.height;
}
surfaceArea() {
return 2 * (this.length*this.width) + (this.length*this.height) + (this.width*this.height);
}
}
const cuboid = new CuboidMaker({
length: 4,
width: 5,
height: 5
});
// Test your volume and surfaceArea methods by uncommenting the logs below:
console.log(cuboid.volume()); // 100
console.log(cuboid.surfaceArea()); // 130
/* Stretch Task:
Extend the base class CuboidMaker with a sub class called CubeMaker.
Find out the formulas for volume and surface area for cubes and create those methods as well.
Create a new cube object and log out the results of your new cube.
*/
class CubeMaker extends CuboidMaker {
constructor(attributes) {
super(attributes);
}
volume() {
return Math.pow(this.length, 3);
}
surfaceArea() {
return Math.pow(this.length, 2) * 6;
}
}
const cube = new CubeMaker({
length: 2,
width: 2,
height: 2
});
console.log(cube.volume());
console.log(cube.surfaceArea());