JSFiddle - React, Tailwind, and code Playground

JavaScript

function sort(arr) {
  var l = arr.length;
  var j, temp;

  while (l > 0) {
		for(j = 0; j<l;j++){
    	if(arr[j]>arr[j+1]){
      	temp = arr[j];
        arr[j] = arr[j+1];
        arr[j+1] = temp;
      }
    }
    l--;
  }

  alert(arr)
}

sort([1, 23, 3, 4, 123, 9])