What is scope chaining in JavaScript?

What is scope chaining in JavaScript?

Scope chaining in JavaScript refers to the way nested functions can access variables from their own scope and the outer scopes.

Can you give me an example of scope chaining?

Sure! If you have a function inside another function, the inner function can access variables from the outer function.

What happens if a variable is not found in the current scope?

If a variable is not found in the current scope, JavaScript will look up the scope chain until it finds the variable or reaches the global scope.

How does this relate to closures?

Scope chaining is fundamental to closures, as closures maintain access to their outer scope even after the outer function has executed.