07.js

// 🧠 JavaScript has 7 primitive data types:

// 1️⃣ String
let name = "Surya";
console.log(typeof name); // "string"

// 2️⃣ Number
let age = 25;
let price = 99.99;
console.log(typeof age); // "number"

// 3️⃣ Boolean
let isStudent = true;
console.log(typeof isStudent); // "boolean"

// 4️⃣ Null (intentional empty value)
let data = null;
console.log(typeof data); // "object" ✅ (JS quirk)

// 5️⃣ Undefined (value not assigned yet)
let score;
console.log(typeof score); // "undefined"

// 6️⃣ Symbol (unique identifier)
let sym = Symbol("id");
console.log(typeof sym); // "symbol"

// 7️⃣ BigInt (for very large integers)
let bigNum = 1234567890123456789012345678901234567890n;
console.log(typeof bigNum); // "bigint"