1. JavaScript Iterator kya hota hai ? JavaScript me iterator ek aisa object hota hai jo kisi collection (jaise array, set, ya string) ke elements ko ek ek karke access…
Event Bubbling Kya Hoti Hai? JavaScript mein event bubbling ek aisa process hai jisme jab kisi nested element (jaise <button> inside <div>) par koi event trigger hota hai, toh wo…
Debouncing aur Throttling Kya Hote Hain ? Jab hum kisi event (jaise scroll, resize, input, ya button click) ko handle karte hain, aur wo event baar-baar frequent fire hota hai,…
Template Literals Kya Hote Hai? Template literals JavaScript mein ek naya tarika hai strings likhne ka, jo ki ES6 (ECMAScript 2015) update mein introduce hua tha. Ye normal quotes (''…
Spread Operator Kya Hota Hai ? Spread operator (...) JavaScript mein ek bahut useful feature hai jo iterable objects (jaise arrays ya objects) ko unke individual elements ya properties mein…
Destructuring Assignment Kya Hota Hai ? Destructuring assignment JavaScript ka ek feature hai jiska use hum object ya array ke values ko easily variables mein assign karne ke liye karte…
WeakSet Kya hota hai ? JavaScript mein WeakSet ek special type ka collection object hota hai jo sirf objects ko hi store karta hai, primitives (jaise string, number) nahi. Iska…
JavaScript Set Object Kya Hote hai ? JavaScript mein Set object ek aisa built-in data structure hai jo unique values ko store karta hai. Iska matlab hai ki Set ke…
Higher-Order Functions Kya Hote hain? JavaScript mein Higher-Order Functions wo functions hote hain jo ya to kisi function ko argument ke roop mein accept karte hain, ya ek function return…