CLOSURE in javascript explained | JavaScript in Hindi - 57

Understand the concept of JS Closure with fun examples. Need not be afraid of closures any more.
A closure is a pairing of:
1. A function and
2. A reference to that function's outer scope (lexical environment)
A lexical environment is part of every execution context (stack frame) and is a map between identifiers (i.e. local variable names) and values.
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How do JavaScript closures work?
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[@SandeepKumarsoftwaredeveloper]

function sum(num,num1,num2){
return num+num1+num2;
}
function curry(callback){
return function(num){
return function(num1){
return function(num2){
return callback(num,num1,num2);
}
}
}
}
const sumf = curry(sum)(1)(2)(3);
console.log(sumf);

[@orion2843]

Promises & Callback Functions in depth.in Java Script

[@chetangupta2130]

Hope it is a appropiate code solution:
let sum = (a) => {
let sum = 0;
sum = sum + a;
return (b) => {
sum = sum + b;
return (c) => {
sum = sum + c;
console.log(a+b+c)
}
}
}
let totalSum = sum(1)(2)(3);

[@orion2843]

Promises & Callbacks

[@TrendingShorts-5G]

Yes promise

[@rahultripathi6935]

U saved my life 🙏

[@soumadip_skyy_banerjee]

❤

[@amritpal1418]

payment gateway

[@mdfurkan370]

Sir selector pointer cursor ko aisa kaha se design kr skte hai

[@coderdost]

cursor: url('image.png'), auto; [ where image.png is new cursor image ]. Path of image should be accessible publicly if site is live.
Many type of cursor examples in this link :
css-tricks.com/almanac/properties/c/cursor/

[@sabiburrahaman3832]

need about (this) and arrow function

[@coderdost]

1. ruclips.net/user/shortskLCKUqlvEvc
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[@suryatejaparvata]

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