detect Iphone X

detectIphoneX.js

(function($){
  "use strict";

    var iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;

    // Get the device pixel ratio
    var ratio = window.devicePixelRatio || 1;

    // Define the users device screen dimensions
    var screen = {
      width : window.screen.width * ratio,
      height : window.screen.height * ratio
    };

    // iPhone X Detection
    if (iOS && screen.width == 1125 && screen.height === 2436) {
      $('body').addClass('iphoneX');
    }

})(jQuery);