What is the scope of variables in nested functions?

Can you explain the scope of variables in nested functions?

Sure! In programming, the scope of a variable refers to the region of the code where that variable is accessible. In nested functions, inner functions can access variables from their own scope as well as from the outer function's scope.

What happens if I try to access a variable from an outer function in the inner function?

If the inner function tries to access a variable from the outer function, it can do so as long as that variable is in scope. This is known as lexical scoping.

Can you give me an example of this?

Of course! Here's a simple example:

function outerFunction() {
    let outerVar = 'I am from outer scope';
    function innerFunction() {
        console.log(outerVar); // Accessing outerVar from inner function
    }
    innerFunction();
}
outerFunction();

What if I declare a variable with the same name in the inner function?

If you declare a variable with the same name in the inner function, it will shadow the outer variable. The inner function will use the inner variable instead of the outer one.