Aapka Pehla JavaScript Program

Aap jo bhi JavaScript program likhoge usme console.log() ka istemal baar baar hoga — yehi hai jisse aapka code aapse baat karta hai. Chaliye dekhte hain ke yeh asal mein kya karta hai, phir ek real program chalate hain.

console.log() function

console.log() jo bhi aap parentheses ke andar likhoge use console par print kar deta hai. Text (jise programming mein "string" kehte hain) quotes ke andar hona chahiye — single ('), double ("), ya backticks (`) sab chalte hain, bas consistent rehna hoga.

Comments

// ke baad line mein jo bhi likha ho woh comment hota hai — JavaScript use bilkul ignore kar deta hai. Comments sirf insaano ke parhne ke liye hote hain, yeh samjhane ke liye ke kuch is tarah kyun likha gaya hai.

Khud chala kar dekho

Yeh raha ek chhota program jisme ek comment aur do console.log() calls hain. Neeche dikhaya gaya output waqai execute kar ke nikala gaya hai — text badal kar khud bhi example ke neeche button se chala kar dekho.

// This is a comment - JavaScript ignores it
console.log("Hello, World!");
console.log("Welcome to JavaScript.");

Hello, World!
Welcome to JavaScript.

Ghor karo, har console.log() call khud ba khud ek nayi line se shuru hota hai — yeh iska default behavior hai.

Aage: variables — values ko asal mein store aur reuse kaise karein, sirf fixed text print karne ke bajaye.