In this tutorial we will be going through Constants and Variables. So, what does they mean in programming language?
Constant is one, for which you can not change the value during the course of a program. On the other hand,
Variables can change.
Let's go through a basic example of above mentioned terms,
Constants are declared using the keyword let,
As 'count' is declared as a constant, updating the value of 'count' is going to throw an error,
(include expressions)
Variables are declared using the keyword var,
In this case user will be able to update the value of 'count'.
