prevent zooming cross-browser with jquery

prevent-zooming-cross-browser-with-jquery.js

// prevent zooming cross-browser with jquery
// @author http://stackoverflow.com/a/31131948/2337281

$(document).keydown(function(event) {
 if (event.ctrlKey === true && (event.which == '61' || event.which == '107' || event.which == '173' || event.which == '109'  || event.which == '187'  || event.which == '189'  ) ) {
  //alert('disabling zooming k'); 
  event.preventDefault();
  // 107 Num Key  +
  // 109 Num Key  -
  // 173 Min Key  hyphen/underscor Hey
  // 61 Plus key  +/=
  }
});

$(window).bind('mousewheel DOMMouseScroll', function (event) {
  if (event.ctrlKey === true) {
    //alert('disabling zooming m'); 
     event.preventDefault();
   }
});