Variable in JavaScript

Variables act as containers for storing data values, which can change or remain constant depending on the program's logic.
It's A unique identifier to access the stored value (e.g., x, name, age).

Purpose of Variables

Store Data: Keep data in memory for calculations or processing.

Reuse Data: Access the stored value multiple times without needing to re-enter it.

Dynamic Updates: Allow the value to be updated as the program runs.

Readable Code: Improve program readability and maintainability by using descriptive names.

How Variables Work

When you declare a variable, the computer reserves a memory location.

The variable name refers to that memory location, so you can retrieve or update its value.

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