“Syntaxe de classe JS” Réponses codées

classe JavaScript

class ClassMates{
	constructor(name,age){
    	this.name=name;
      	this.age=age;
    }
  	displayInfo(){
    	return this.name + "is " + this.age + " years old!";
    }
}

let classmate = new ClassMates("Mike Will",15);
classmate.displayInfo();  // result: Mike Will is 15 years old!
Spotted Tailed Quoll

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

classe JS

function Animal (name) {
  this.name = name;
}

Animal.prototype.speak = function () {
  console.log(`${this.name} makes a noise.`);
}

class Dog extends Animal {
  speak() {
    console.log(`${this.name} barks.`);
  }
}

let d = new Dog('Mitzie');
d.speak(); // Mitzie barks.

// For similar methods, the child's method takes precedence over parent's method
Dead Donkey

classe JavaScript

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 JavaScript

class Polygon {
  constructor(height, width) {
    this.height = height;
    this.width = width;
  }

  get area() {
    return this.calcArea();
  }

  calcArea() {
    return this.height * this.width;
  }
}

const square = new Polygon(10, 10);

console.log(square.area);
Perfect Pheasant

Syntaxe de classe JS

// method 1

function nested(name , age , color){
    this.name = name;
    this.details = { 
        age : age,
        color : color
    }
}

let nestedObj = new nested( "Elroi" , 22 , "blue");
 console.log(nestedObj)


// method 2
class Nested2{
    constructor(name , age , color){
        this.name = name;
        this.details = {
            age : age,
            color : color
        }
    };

    displayInfo(){
        console.log(`${this.name} ${this.details.age} ${this.details.color} `)
    } 
}

let aaa  = new Nested2("Ean" , 14 , "black");
aaa.displayInfo(); 
Confused Crossbill

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