What are the advantages of using factory functions in JavaScript?

What are the advantages of using factory functions in JavaScript?

Factory functions provide a way to create multiple objects with shared properties and methods without using the 'new' keyword.

Can you explain how they differ from constructor functions?

Sure! Unlike constructor functions, factory functions don't require the 'new' keyword and can return different types of objects.

Are there any performance benefits to using factory functions?

Yes, factory functions can lead to better memory management since they can create objects without the overhead of prototypes.

What about encapsulation? Do factory functions help with that?

Absolutely! Factory functions can encapsulate private variables and methods, providing better data hiding.

Can you give me an example of a factory function?

Certainly! Here's a simple example:

function createPerson(name, age) {
    return {
        name: name,
        age: age,
        greet() {
            console.log(`Hello, my name is ${this.name}.`);
        }
    };
}
const person1 = createPerson('Alice', 30);
person1.greet(); // Hello, my name is Alice.