Hi welcome to my portfolio I am Ganesh

Function is a piece of code is executed when you call that function.a repeated piece of code which is written multiple times instead of that when we write that code inside a function we don't have to write repeated piece of code.

A variable is a value that can change, depending on conditions or on information passed to the program. variable is a container for storing data Javascript variable can store any data values

array is a single variable that is used to store different elements. It is often used when we want to store list of elements and access them by a single variable.in JavaScript array is a single variable that stores multiple elements.