Detect images in page without (valid) alt and title

gistfile1.txt

var imagecount = 0;
var titleMissing = 0;
var altMissing = 0;
var $image = null;

jQuery('img').each(function(i, el) {
  imagecount++;
  $image = jQuery(el);

  if(typeof $image.attr('title') !== 'undefined' && $image.attr('title') !== '') {
    titleMissing++;
  }
  if(typeof $image.attr('alt') !== 'undefined' && $image.attr('alt') !== '') {
    altMissing++;
  }

});

console.log(imagecount);
console.log(titleMissing);
console.log(altMissing);