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📦 Topic 02: Variables & Data Types — "Dabbe Aur Unka Saamaan!"

"Variables are the containers of programming." — Unknown "Programming me data store karna padta hai…

Overview

📦 Topic 02: Variables & Data Types — "Dabbe Aur Unka Saamaan!" — Quick Facts

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Topic 1

📊 var, let, const ka fark, 8 data types, type conversion, type coercion, typeof operator,…

Topic 2

💾 ` VARIABLE = Named container for storing data! Real Life Analogy:…

Topic 3

🗄️ var (OLD way — 1995 se!): `javascript // var = purana tareeqa! ES6 se pehle yahi tha! var…

Topic 4

📈 Two Categories: ` PRIMITIVE TYPES (7): Simple values! Immutable! 1. String 2. Number 3.…

Topic 5

🔍 `javascript // typeof se kisi bhi value ka type pata lagao! console.log(typeof "Hello");…

Topic 6

📉 Explicit Conversion (Tum khud karo!): `javascript // String → Number: Number("42"); // 42…

Topic 7

🧮 ` RULES (MUST FOLLOW!): ✅ Letters, digits, underscore (_), dollar ($) allowed! ✅ Must…

Topic 8

🌐 ` ┌─────────────────────────────────────────────────────────┐ │ │ │ 🔑 KEY POINTS │ │ │ │…

Topic 9

📊 Exercise 1: Variable Declaration 📦 Console me yeh sab declare karo aur output dekho:…

Topic 10

💾 | Previous | Index | Next | |----------|-------|------| | ← Topic 01: What Is JavaScript?…

Quick Quiz

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