ua_detecter

ua_detecter.js

var _ua = (function(u){
 return {
  ltIE6:typeof window.addEventListener == "undefined" && typeof document.documentElement.style.maxHeight == "undefined",
  ltIE7:typeof window.addEventListener == "undefined" && typeof document.querySelectorAll == "undefined",
  ltIE8:typeof window.addEventListener == "undefined" && typeof document.getElementsByClassName == "undefined",
  ltIE9:document.uniqueID && typeof window.matchMedia == "undefined",
  gtIE10:document.uniqueID && window.matchMedia,
  gtIE11:document.uniqueID && document.documentMode >= 11,
  Trident:document.uniqueID,
  Gecko:'MozAppearance' in document.documentElement.style,
  Presto:window.opera,
  Blink:window.chrome,
  Webkit:typeof window.chrome == "undefined" && 'WebkitAppearance' in document.documentElement.style,
  Touch:typeof document.ontouchstart != "undefined",
  Mobile:(typeof window.orientation != "undefined") || (navigator.userAgent.indexOf("Windows Phone") != -1),
  ltAd4_4:typeof window.orientation != "undefined" && typeof(EventSource) == "undefined",
  Pointer:window.navigator.pointerEnabled,
  MSPoniter:window.navigator.msPointerEnabled,
  Tablet:(u.indexOf("windows") != -1 && u.indexOf("touch") != -1)
    || u.indexOf("ipad") != -1
    || (u.indexOf("android") != -1 && u.indexOf("mobile") == -1)
    || (u.indexOf("firefox") != -1 && u.indexOf("tablet") != -1)
    || u.indexOf("kindle") != -1
    || u.indexOf("silk") != -1
    || u.indexOf("playbook") != -1,
  Mobile:(u.indexOf("windows") != -1 && u.indexOf("phone") != -1)
    || u.indexOf("iphone") != -1
    || u.indexOf("ipod") != -1
    || (u.indexOf("android") != -1 && u.indexOf("mobile") != -1)
    || (u.indexOf("firefox") != -1 && u.indexOf("mobile") != -1)
    || u.indexOf("blackberry") != -1
})(window.navigator.userAgent.toLowerCase());

From W3G.
https://w3g.jp/blog/js_browser_sniffing
https://w3g.jp/blog/js_browser_sniffing2015