// Improved formatting of Spotted Tailed Quoll's answer
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
introduction() {
return `My name is ${name} and I am ${age} years old!`;
}
}
let john = new Person("John Smith", 18);
console.log(john.introduction());class Rectangle {
constructor(height, width) {
this.height = height;
this.width = width;
}
// Getter
get area() {
return this.calcArea();
}
// Method
calcArea() {
return this.height * this.width;
}
}
const square = new Rectangle(10, 10);
console.log(square.area); // 100//class in es6 are just functional constructor.
class PersonES6{
constructor(firstname,lastname,age){
this.firstname= firstname;
this.lastname=lastname;
this.age=age
}
aboutPerson(){
console.log(`My name is ${this.firstname} ${this.lastname} and I am ${this.age} years old`)
}
}
const shirshakES6= new Person('Shirshak','Kandel',25)
shirshakES6.aboutPerson();class Point {
constructor(x, y) {
this.x = x
this.y = y
}
toString() {
return '[X=' + this.x + ', Y=' + this.y + ']'
}
}
class ColorPoint extends Point {
static default() {
return new ColorPoint(0, 0, 'black')
}
constructor(x, y, color) {
super(x, y)
this.color = color
}
toString() {
return '[X=' + this.x + ', Y=' + this.y + ', color=' + this.color + ']'
}
}
console.log('The first point is ' + new Point(2, 10))
console.log('The second point is ' + new ColorPoint(2, 10, 'green'))
console.log('The default color point is ' + ColorPoint.default())class Polygon {
constructor(...sides) {
this.sides = sides;
}
// Method
*getSides() {
for(const side of this.sides){
yield side;
}
}
}
const pentagon = new Polygon(1,2,3,4,5);
console.log([...pentagon.getSides()]); // [1,2,3,4,5]