What are constructor functions?

Can you explain what constructor functions are in JavaScript?

Sure! Constructor functions are special functions used to create objects in JavaScript. They are defined using the 'function' keyword and are typically named with a capital letter.

How do I create an object using a constructor function?

You can create an object by using the 'new' keyword followed by the constructor function. For example:

function Person(name, age) {
    this.name = name;
    this.age = age;
}

const john = new Person('John', 30);

What is the purpose of the 'this' keyword in constructor functions?

The 'this' keyword refers to the instance of the object being created. It allows you to set properties and methods for that specific object.

Can you give me an example of a method in a constructor function?

Absolutely! You can add methods to the constructor's prototype. For example:

Person.prototype.greet = function() {
    console.log('Hello, my name is ' + this.name);
};

john.greet(); // Outputs: Hello, my name is John