How to use Functions in JavaScript | Parameterized and non-parameterized Functions | Tutorial - #15

In this video I have explained two types of functions parameterized functions and non-parameterized functions. Function is used to reduce the re-usability of code. Function will not give any output until and unless it is not called. I have also explained that how to add two numbers in functions and how to calculate the sum of first 100 digits.
The code is mentioned below: