JavaScript kya hai?

 

JavaScript kya hai?

JavaScript


JavaScript ek programming language hai jo websites ko interactive (sachchal) banane ke liye use ki jaati hai.

✅ Simple Definition (Hinglish mein):

JavaScript ek language hai jo web page par dynamic features jodti hai — jaise button click, image slider, live form validation, pop-up, countdown timer, etc.

🔹 JavaScript kis liye use hoti hai?

Use CaseExample
✅ Button click par kaam karna"Submit" par click karte hi message show karna
✅ Form validationEmail ya password galat ho to warning dena
✅ Real-time content updateSearch box mein live suggestions
✅ Animation aur effectsImage slider, fading effects
✅ Games aur calculatorsOnline quiz ya calculator banana
✅ APIs se data lanaWeather ya live cricket score dikhana

🔹 JavaScript kahaan likhi jaati hai?

JavaScript ko HTML page ke andar likha jaata hai:

html
<!DOCTYPE html>
<html>
<head>
  <title>JS Example</title>
</head>
<body>

<button onclick="alert('Hello!')">Click Me</button>

<script>
  // JavaScript code yahan hota hai
  console.log("Welcome to JavaScript!");
</script>

</body>
</html>

🔹 JavaScript ke Important Features:

FeatureDetail
🔸 Client-side languageBrowser ke andar chalti hai
🔸 Fast & LightweightJaldi load hoti hai
🔸 DynamicWeb page ko real-time update karti hai
🔸 PopularHar browser (Chrome, Firefox, Safari) mein support hoti hai
🔸 FrameworksReact, Angular, Vue – sab JavaScript pe based hain

🔹 JavaScript ke Alternatives:

JavaScript ke Alternatives:


LanguageUse
HTMLPage ka structure banata hai
CSSPage ka design banata hai
JavaScriptPage mein jaan daalta hai (functionality)

🔚 Ek Line Mein:

JavaScript ek powerful language hai jo website ko static se interactive banati hai.

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