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DEV Community · Sathish Kumar · 2026-09-24 개발(SW)

Sathish Kumar

Today I learned about Data Types in JavaScript.

Data types tell us what kind of value a variable stores.

  1. 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;

  1. 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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};

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추출 본문 · 출처: dev.to · https://dev.to/sathish_kumar_967/java-script-5bp5