ChathuraGH

//Split the string with the spread ... operator instead of .split(''):

'🌯🌯🍣🍻'.split('')
//=> ["\ud83c", "\udf2f", "\ud83c", "\udf2f", "\ud83c", "\udf63", "\ud83c", "\udf7b"]
//vs

[...'🌯🌯🍣🍻']
//=> ["🌯", "🌯", "🍣", "🍻"]
//vs

ChathuraGH

function Char_Count(str1) {
    var chars = {};
    str1.replace(/\S/g, function(l){chars[l] = (isNaN(chars[l]) ? 1 : chars[l] + 1);});
    return chars;
}

var myString = "This is my String";
console.log(Char_Count(myString));

ChathuraGH

function countChrOccurence ('hello') {
 let charMap = new Map();
 const count = 0;
  for (const key of str) {
   charMap.set(key,count); // initialize every character with 0. this would make charMap to be 'h'=> 0, 'e' => 0, 'l' => 0, 
  }

  for (const key of str) {
    let count = charMap.get(key);
    charMap.set(key, count + 1);

ChathuraGH

function countChar(str) {
    let myObj= {};
    for (let s of str) {
        if ( myObj[s] ? myObj[s].count ++ : myObj[s] = { count : 1 } );
    }
    return myObj;
}

var charCount = countChar('abcceddd');

ChathuraGH

let str = "atul kumar srivastava";
let obj ={};
for(let s of str)if(!obj[s])obj[s] = 1;else obj[s] = obj[s]  + 1;
console.log(obj)



//source 
// https://stackoverflow.com/questions/19480916/count-number-of-occurrences-for-each-char-in-a-string
// https://stackoverflow.com/a/60648545/13861187

ChathuraGH

const k = 5;
const dict = {
  "x" : 1,
  "y" : 6,
  "z" : 9,
  "a" : 5,
  "b" : 7,
  "c" : 11,
  "d" : 17,
  "t" : 3

ChathuraGH

const sortObjectByValues = (dict: { [key: string]: number }, direction: 'asc'| 'desc' = 'asc') => {
  return Object.fromEntries(Object.entries(dict).sort((a, b) => {
    if (direction === 'asc') {
      return a[1] - b[1]
    }
    return b[1] - a[1]
  }))
}

ChathuraGH

function sortObj(obj) {
    // Sort object as list based on values
    return Object.keys(obj).map(k => ([k, obj[k]])).sort((a, b) => (b[1] - a[1]))
}



//source 
//https://stackoverflow.com/questions/25500316/sort-a-dictionary-by-value-in-javascript
//https://stackoverflow.com/a/74250133/13861187

ChathuraGH

function withAMap(str) {
    // A map for the character=>count mappings
    const counts = new Map();

    // Loop through the string...
    for (const ch of str) {
        // Get the count for it, if we have one; we'll get `undefined` if we don't
        // know this character yet. Using nullish coalescing (`??`), we can turn
        // that `undefined` into a `0`. (In obsolete environments that don't

ChathuraGH

let s = 'hello';
var result = [...s].reduce((a, e) => { a[e] = a[e] ? a[e] + 1 : 1; return a }, {}); 
console.log(result); // {h: 1, e: 1, l: 2, o: 1}