Web development course in Hindi | JS course Hindi |Javascript Basic | Js Variables | 29 |

Javascript Variables
Variables are containers for storing data (values).

There are 3 ways to declare a JavaScript variable:

Using var
Using let
Using const

The general rules for constructing names for variables (unique identifiers) are:

Names can contain letters, digits, underscores, and dollar signs.
Names must begin with a letter
Names can also begin with $ and _ (but we will not use it in this tutorial)
Names are case sensitive (y and Y are different variables)
Reserved words (like JavaScript keywords) cannot be used as names




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