return !!document.createElement('audio').canPlayType;

var a = document.createElement('audio');
return !!(a.canPlayType && a.canPlayType('audio/mpeg;').replace(/no/, ''));

var a = document.createElement('audio');
return !!(a.canPlayType && a.canPlayType('audio/ogg; codecs="vorbis"').replace(/no/, ''));

var a = document.createElement('audio');
return !!(a.canPlayType && a.canPlayType('audio/wav; codecs="1"').replace(/no/, ''));

var a = document.createElement('audio');
return !!(a.canPlayType && a.canPlayType('audio/mp4; codecs="mp4a.40.2"').replace(/no/, ''));

return !!document.createElement('canvas').getContext;

var c = document.createElement('canvas');
return c.getContext && typeof c.getContext('2d').fillText == 'function';

return 'type' in document.createElement('command');

return 'options' in document.createElement('datalist');

return 'open' in document.createElement('details');

return 'type' in document.createElement('device');

return 'noValidate' in document.createElement('form');

return 'sandbox' in document.createElement('iframe');

return 'srcdoc' in document.createElement('iframe');

return 'autofocus' in document.createElement('input');

return 'placeholder' in document.createElement('input');

var i = document.createElement('input');
i.setAttribute('type', 'color');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'email');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'number');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'range');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'search');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'tel');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'url');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'date');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'time');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'datetime');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'datetime-local);
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'month');
return i.type !== 'text';

var i = document.createElement('input');
i.setAttribute('type', 'week');
return i.type !== 'text';

return 'value' in document.createElement('meter');

return 'value' in document.createElement('output');

return 'value' in document.createElement('progress');

return 'valueAsDate' in document.createElement('time');

return !!document.createElement('video').canPlayType;

return 'track' in document.createElement('track');

return 'poster' in document.createElement('video');

var v = document.createElement('video');
return !!(v.canPlayType && v.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/no/, ''));

var v = document.createElement('video');
return !!(v.canPlayType && v.canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"').replace(/no/, ''));

var v = document.createElement('video');
return !!(v.canPlayType && v.canPlayType('video/ogg; codecs="theora, vorbis"').replace(/no/, ''));

return 'isContentEditable' in document.createElement('span');

return !!window.postMessage;

return 'draggable' in document.createElement('span');

return typeof FileReader != 'undefined';

return !!navigator.geolocation;

return !!(window.history && window.history.pushState && window.history.popState);

return ('localStorage' in window) && window['localStorage'] !== null;

return !!document.getItems;

return !!window.applicationCache;

return typeof EventSource !== 'undefined';

try {
  return ('sessionStorage' in window) && window['sessionStorage'] !== null;
} catch(e) {
  return false;
}

return !!(document.createElementNS && document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect);

var e = document.createElement('div');
e.innerHTML = '';
return !!(window.SVGSVGElement && e.firstChild instanceof window.SVGSVGElement);

return !!window.indexedDB;

return !!window.WebSocket;

return !!window.openDatabase;

return !!window.Worker;

return typeof UndoManager !== 'undefined';