// simplest function definition in js 😁

let e = e => +e

// Js Own event lib creation

class EventEmitter {
  funcs = [];
  
  constructor() {}
  
  on(mesType, callback) {
    this.funcs.push({ mesType, callback });
  }
  
  emit(mesType, obj) {
    this.funcs.forEach(funobj => {
      if (funobj.mesType == mesType) {
        funobj.callback(obj);
      }
    });
  }
}

/*
For use:
e = new EventEmitter();

e.on("mes", (mes)=> {
console.log("logic here")
})

e.emit("mes", {data: "mydata"})
*/

All video downloader js libraries:

Youtube video downloader
https://www.npmjs.com/package/ytdl-core

Insta video downloader
https://www.npmjs.com/package/snapsave-downloader-itj

Facebook video downloader
https://www.npmjs.com/package/fb-downloader-scrapper

Twitter video downloader

(If you have chrome then use update it in puppeteer-core)

https://github.com/JBLorincz/xvidrip
Or
Twitter video downloader

(Without puppeteer Old lib so needs some modification as twitter is now x.com)

https://www.npmjs.com/package/video-url-link?activeTab=code

YouTube on Telegram 😎:
http://t.me/YouTube_gbot/ytb

React For beginners

Are you added coding folder? 👇
https://t.me/addlist/2UhsQW_cGzkxMzg1

// Js code to scrap phone numbers from string

str = "+911234567890 xyz abcd Xs bdtsk yts ki hrtsk 1212343409 djdb 23 yted l 1234567 Ynd yts"

console.log(str.match(/\+?\d{10,12}/g))

Javascript loops

for loop: It's used when you know the number of iterations. It consists of three parts: initialization, condition, and iteration statement.

for (let i = 0; i < 5; i++) {
    console.log(i)
}

while loop: It executes a block of code while a specified condition is true.

let i = 0;
while (i < 5) {
    console.log(i)
    i++;
}

do...while loop: Similar to a while loop, but it always executes the block of code at least once, and then checks the condition.

let i = 0;
do {
    console.log(i)
    i++;
} while (i < 5);

for...in loop: Iterates over the enumerable properties of an object.

const obj = { a: 1, b: 2, c: 3 };
for (let prop in obj) {
    // Code to be executed
    console.log(prop + ': ' + obj[prop]);
}

for...of loop: Introduced in ES6, it iterates over iterable objects (arrays, strings, maps, sets, etc.).

const arr = [1, 2, 3];
for (let value of arr) {
    console.log(value);
}

@nodejs_codes_pro

// Word count in string

require("jsshort").input("Enter string: ")

.then((Str)=>{
obj = {}
for(let x of Str)
obj[x] = (obj[x]||0) + 1

console.log(obj)
})

Array ( List ) functions of javascript 👇👇

// 1. push()

let arrPush = [1, 2, 3];
arrPush.push(4, 5);
console.log(arrPush); // Output: [1, 2, 3, 4, 5]

// 2. pop()

let arrPop = [1, 2, 3, 4, 5];
let popped = arrPop.pop();
console.log(popped); // Output: 5
console.log(arrPop); // Output: [1, 2, 3, 4]

// 3. shift()

let arrShift = [1, 2, 3, 4, 5];
let shifted = arrShift.shift();
console.log(shifted); // Output: 1
console.log(arrShift); // Output: [2, 3, 4, 5]

// 4. unshift()

let arrUnshift = [1, 2, 3];
arrUnshift.unshift(-3, -2, -1, 0);
console.log(arrUnshift); // Output: [-3, -2, -1, 0, 1, 2, 3]

// 5. splice()

let arrSplice = [1, 2, 3, 4, 5];
arrSplice.splice(2, 1, 'a', 'b');
console.log(arrSplice); // Output: [1, 2, 'a', 'b', 4, 5]

// 6. slice()

let arrSlice = [1, 2, 3, 4, 5];
let sliced = arrSlice.slice(1, 4);
console.log(sliced); // Output: [2, 3, 4]

// 7. concat()

let arrConcat1 = [1, 2, 3];
let arrConcat2 = [4, 5];
let concatenated = arrConcat1.concat(arrConcat2);
console.log(concatenated); // Output: [1, 2, 3, 4, 5]

// 8. indexOf()

let arrIndexOf = [1, 2, 3, 4, 5, 4];
let index = arrIndexOf.indexOf(4);
console.log(index); // Output: 3

// 9. lastIndexOf()

let arrLastIndexOf = [1, 2, 3, 4, 5, 4];
let lastIndex = arrLastIndexOf.lastIndexOf(4);
console.log(lastIndex); // Output: 5

// 10. includes()

let arrIncludes = [1, 2, 3, 4, 5];
let included = arrIncludes.includes(3);
console.log(included); // Output: true