JSON.stringify

HTML

<pre>
Company	Team
Facebook	Marketing
Google	Engineering
Microsoft	Product
</pre>

JavaScript

let pre = document.querySelector('pre').innerHTML;

var cells = pre.split('\n').map(function (el) { return el.split(/\s+/); });

console.log(cells)

var headings = cells.shift();
console.log(headings)

var obj = cells.map(function (el) {
  var obj = {};
  for (var i = 0, l = el.length; i < l; i++) {
    obj[headings[i]] = isNaN(Number(el[i])) ? el[i] : +el[i];
  }
  console.log(obj)
  return obj;
});


var json = JSON.stringify(obj,null,5);
console.log(json)