How does function overloading work in JavaScript?

Can you explain how function overloading works in JavaScript?

In JavaScript, function overloading isn't supported in the traditional sense like in some other languages. Instead, you can achieve similar behavior by using a single function that checks the number and types of arguments.

Can you give me an example of that?

Sure! Here's a simple example:

function add(a, b) {
    if (typeof b === 'undefined') {
        return a;
    }
    return a + b;
}

This function can be called with one or two arguments.

What happens if I pass more than two arguments?

If you pass more than two arguments, JavaScript will ignore the extra ones unless you handle them explicitly within the function.

Is there a way to handle different types of arguments?

Yes! You can use the typeof operator to check the types of the arguments and implement logic based on that.