JavaScript Ka Taaruf

JavaScript web ki programming language hai — har browser ise natively chala sakta hai, isi liye taqreeban har interactive website JavaScript istemal karti hai. Python ke bar-aks, jise aksar alag se install karna parta hai, JavaScript wahin chalti hai jahan bhi browser chalta hai.

JavaScript browser ke bahar bhi chalti hai, servers par, Node.js ke zariye — frontend aur backend dono par same language, yehi wajah hai ke yeh itni zyada istemal hoti hai.

JavaScript asal mein kis kaam aati hai

• Web frontends — webpage ka har interactive element (dropdowns, form validation, live updates) JavaScript hi hota hai
• Web backends — Node.js se same language servers, APIs, aur databases sambhalti hai
• Mobile aur desktop apps — React Native aur Electron jaise frameworks JavaScript se real apps banate hain
• Scripting aur automation — build tools, command-line scripts, aur browser extensions

Ek chhoti si jhalak

Yeh raha real JavaScript ki ek line, jo is page ke apne compiler par waqai chala kar dikhai gayi hai — koi mockup nahi:

console.log("Hello from JavaScript!");

Hello from JavaScript!

Bas itna hi poora program hai. Agla lesson theek se samjhata hai ke us line mein kya ho raha hai, aur aap apna version khud likhoge.