Today I learned about Data Types in JavaScript.
Data types tell us what kind of value a variable stores.
- Primitive Data Types:
Primitive data types store simple values.
String → stores text
Example:
let name = "Sathish";
Number → stores numbers
Example:
let age = 23;
Boolean → stores true or false
Example:
let is Student = true;
BigInt → used for very large integers
Example:
let bigNumber = 12345678901234567890n;
- Non-Primitive Data Type:
The main non-primitive type is Object.
Objects can store multiple values in a structured way.
Example:
let student = {
name: "Sathish",
age: 23
};

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