// Class definition for Person
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
// Method to generate a greeting
greet() {
return `Hello, my name is ${this.name} and I am ${this.age} years old.`;
}
}
// Usage of the Person class
const person = new Person('John', 30);
const greeting = person.greet();JavaScript Class with Constructor and Method
javascript
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javascript
Understanding JavaScript Classes
The extends keyword is used to create a subclass (child class) that inherits from another class (parent class).
class Animal {
constructor(type, name) {
this.type = type;
this.name = name;
}
speak() {
console.log(`${this.name} makes a noise.`);
}
}
class Dog extends Animal {
constructor(name, breed) {
super('Dog', name);
this.breed = breed;
}
speak() {
console.log(`${this.name} barks.`);
}
}
const dog = new Dog('Buddy', 'Golden Retriever');
dog.speak(); // Output: Buddy barks.Sep 02, 2024
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