“Classe ES6” Respostas de código

classe JavaScript

// 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());
Nathan uses Linux

Aulas no ES6

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
HimansaE

Classe ES6

//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();
Sab Tech

Aulas no ES6

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())
Outrageous Ostrich

Palavra -chave de classe ES6

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]
Obnoxious Osprey

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