JSFiddle - React, Tailwind, and code Playground

by Akram kamal

HTML

<div id="result"></div>

JavaScript

var str2 = '37 39 53 68 75 3 49 61 62 68 23 25 28 30 75 31 35 41 65 66 9 15 24 39 41 11 29 36 58 67 3 50 57 58 60 2 14 21 28 55 5 35 37 41 66 21 31 43 56 60 11 37 46 64 68 2 32 35 50 59 16 29 46 48 55 3 20 34 58 67 3 16 52 54 61 17 26 35 46 62 21 24 25 40 43 16 25 27 29  34 25 45 51 53 73 18 28 33 36 42 25 34 55 70 71 7 12 20 24 59 1 8 54 69 72 3 26 45 58 73 29 31 51 60 64';

var res2 =  str2.split(" ").map(function(v){return +v}).sort(function (a,b) {
    return a - b;
});

for ( var i = 0; i <  res2.length; i++ ) {
    if (res2[i]!==res2[i-1])
      console.log(res2[i] + ' ------->' + findOccurrences(res2, res2[i]));
      var t1 = res2[i] + ' ------->' + findOccurrences(res2, res2[i]);
   document.getElementById('result').innerHTML = t1;
 }

function findOccurrences(arr, val) {
   return arr.filter(function(v){ return v===val}).length
}