occurrences of each letter in specified string

by John Kiran

HTML

<p>
Counts the repeated letters
</p>
<input id="ipt" type="text">
<button id="btn">
Check
</button>
<p id='result'>

</p>

JavaScript

//copy this and try
//thequickbrownfoxjumpsoverthelazydog

//get input element
let num = document.getElementById("ipt");
let para=document.getElementById("result");
//btn onclick factors of a number
document.getElementById("btn").addEventListener("click",count);

function count() {
	let arr=num.value.split("").sort().join("");
  for(let i=0;i<arr.length;i++) {
  	let count=0;
    for(let j=0;j<arr.length;j++) {
    	if(arr[i]==arr[j]) {
    		count++;
    	} 
    }
    para.innerHTML+=(arr[i]+":"+count)+"<br>";
  }
}