JAVASCRIPT calling and return

Question

What is the difference between calling a function or return .
Plz tell by a example.

Answer 1

You can think of a function like a person who does a specific task.

A function may (or not) accept stuffs necessary to do its work, stuffs that diversify the resulting product in specific ways. We call these stuffs parameters.

A function may (or not) return something to the caller once its work is done. The caller will be responsible to prepare something, into which the product returned by a function will be stored.

There is a chapter dedicated to cover functions in the course, you'll find examples there.