Definition:
It is a place where you can store values while the program runs.
You can change its value at any time in the program.
You can use it only inside the block {} where it is declared.
It stores the value of any type, such as a number, a string, an array, or a boolean.
Variable Name Value
Raj
---------->
5
name
---------->
"Ravi"
isStudent
---------->
true
Syntax:
let variableName = value;Example:
let name = 5; // number value
let name = "Ravi"; // string value
let isStudent = true; // boolean value