What are nested functions in JavaScript?

What are nested functions in JavaScript?

Nested functions are functions defined inside another function. They can access variables from the outer function.

Can you give me an example of a nested function?

Sure! Here's a simple example:

function outerFunction() {
    let outerVariable = 'I am from outer function';
    function innerFunction() {
        console.log(outerVariable);
    }
    innerFunction();
}
outerFunction();

What is the benefit of using nested functions?

Nested functions help in organizing code, encapsulating functionality, and maintaining a clean scope.

Are there any drawbacks to using nested functions?

Yes, one drawback is that they can lead to increased complexity and may make debugging harder if overused.