JSFiddle - React, Tailwind, and code Playground

JavaScript

function json() {
	var headers = new Array();
  
  var str = "Name, Value, MaxStackSize";
  str = str.toString().split(",");
  alert(str.length);
  
  var i = 1;
  for (var i = 0; i < str.length; i++) {
  	alert(str[i]);
    headers[str[i]] = i + 1;
  }
  
  for (key in headers) {
  	alert(key + ': ' + headers[key]);
  }

  return headers;
}

json();