Definition:
It is a place where you can store values while the program runs.
You can not 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, a boolean, an object, or null.
Note:
- You cannot change the value of primitive types (number, string, and boolean) stored in a const.
- But you can change the elements or properties of objects and arrays.
Variable Name Value
age
---------->
5
name
---------->
"Ravi"
isStudent
---------->
true
Syntax:
const variableName = value;Example:
const age = 5; // number value
const name = "Ravi"; // string value
const isStudent = true; // boolean value