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| (Empty) |  | 
 |    1 /*! | 
 |    2  * Bowser - a browser detector | 
 |    3  * https://github.com/ded/bowser | 
 |    4  * MIT License | (c) Dustin Diaz 2015 | 
 |    5  */ | 
 |    6  | 
 |    7 !function (root, name, definition) { | 
 |    8   if (typeof module != 'undefined' && module.exports) module.exports = definitio
     n() | 
 |    9   else if (typeof define == 'function' && define.amd) define(name, definition) | 
 |   10   else root[name] = definition() | 
 |   11 }(this, 'bowser', function () { | 
 |   12   /** | 
 |   13     * See useragents.js for examples of navigator.userAgent | 
 |   14     */ | 
 |   15  | 
 |   16   var t = true | 
 |   17  | 
 |   18   function detect(ua) { | 
 |   19  | 
 |   20     function getFirstMatch(regex) { | 
 |   21       var match = ua.match(regex); | 
 |   22       return (match && match.length > 1 && match[1]) || ''; | 
 |   23     } | 
 |   24  | 
 |   25     function getSecondMatch(regex) { | 
 |   26       var match = ua.match(regex); | 
 |   27       return (match && match.length > 1 && match[2]) || ''; | 
 |   28     } | 
 |   29  | 
 |   30     var iosdevice = getFirstMatch(/(ipod|iphone|ipad)/i).toLowerCase() | 
 |   31       , likeAndroid = /like android/i.test(ua) | 
 |   32       , android = !likeAndroid && /android/i.test(ua) | 
 |   33       , nexusMobile = /nexus\s*[0-6]\s*/i.test(ua) | 
 |   34       , nexusTablet = !nexusMobile && /nexus\s*[0-9]+/i.test(ua) | 
 |   35       , chromeos = /CrOS/.test(ua) | 
 |   36       , silk = /silk/i.test(ua) | 
 |   37       , sailfish = /sailfish/i.test(ua) | 
 |   38       , tizen = /tizen/i.test(ua) | 
 |   39       , webos = /(web|hpw)os/i.test(ua) | 
 |   40       , windowsphone = /windows phone/i.test(ua) | 
 |   41       , samsungBrowser = /SamsungBrowser/i.test(ua) | 
 |   42       , windows = !windowsphone && /windows/i.test(ua) | 
 |   43       , mac = !iosdevice && !silk && /macintosh/i.test(ua) | 
 |   44       , linux = !android && !sailfish && !tizen && !webos && /linux/i.test(ua) | 
 |   45       , edgeVersion = getFirstMatch(/edge\/(\d+(\.\d+)?)/i) | 
 |   46       , versionIdentifier = getFirstMatch(/version\/(\d+(\.\d+)?)/i) | 
 |   47       , tablet = /tablet/i.test(ua) && !/tablet pc/i.test(ua) | 
 |   48       , mobile = !tablet && /[^-]mobi/i.test(ua) | 
 |   49       , xbox = /xbox/i.test(ua) | 
 |   50       , result | 
 |   51  | 
 |   52     if (/opera/i.test(ua)) { | 
 |   53       //  an old Opera | 
 |   54       result = { | 
 |   55         name: 'Opera' | 
 |   56       , opera: t | 
 |   57       , version: versionIdentifier || getFirstMatch(/(?:opera|opr|opios)[\s\/](\
     d+(\.\d+)?)/i) | 
 |   58       } | 
 |   59     } else if (/opr\/|opios/i.test(ua)) { | 
 |   60       // a new Opera | 
 |   61       result = { | 
 |   62         name: 'Opera' | 
 |   63         , opera: t | 
 |   64         , version: getFirstMatch(/(?:opr|opios)[\s\/](\d+(\.\d+)?)/i) || version
     Identifier | 
 |   65       } | 
 |   66     } | 
 |   67     else if (/SamsungBrowser/i.test(ua)) { | 
 |   68       result = { | 
 |   69         name: 'Samsung Internet for Android' | 
 |   70         , samsungBrowser: t | 
 |   71         , version: versionIdentifier || getFirstMatch(/(?:SamsungBrowser)[\s\/](
     \d+(\.\d+)?)/i) | 
 |   72       } | 
 |   73     } | 
 |   74     else if (/coast/i.test(ua)) { | 
 |   75       result = { | 
 |   76         name: 'Opera Coast' | 
 |   77         , coast: t | 
 |   78         , version: versionIdentifier || getFirstMatch(/(?:coast)[\s\/](\d+(\.\d+
     )?)/i) | 
 |   79       } | 
 |   80     } | 
 |   81     else if (/yabrowser/i.test(ua)) { | 
 |   82       result = { | 
 |   83         name: 'Yandex Browser' | 
 |   84       , yandexbrowser: t | 
 |   85       , version: versionIdentifier || getFirstMatch(/(?:yabrowser)[\s\/](\d+(\.\
     d+)?)/i) | 
 |   86       } | 
 |   87     } | 
 |   88     else if (/ucbrowser/i.test(ua)) { | 
 |   89       result = { | 
 |   90           name: 'UC Browser' | 
 |   91         , ucbrowser: t | 
 |   92         , version: getFirstMatch(/(?:ucbrowser)[\s\/](\d+(?:\.\d+)+)/i) | 
 |   93       } | 
 |   94     } | 
 |   95     else if (/mxios/i.test(ua)) { | 
 |   96       result = { | 
 |   97         name: 'Maxthon' | 
 |   98         , maxthon: t | 
 |   99         , version: getFirstMatch(/(?:mxios)[\s\/](\d+(?:\.\d+)+)/i) | 
 |  100       } | 
 |  101     } | 
 |  102     else if (/epiphany/i.test(ua)) { | 
 |  103       result = { | 
 |  104         name: 'Epiphany' | 
 |  105         , epiphany: t | 
 |  106         , version: getFirstMatch(/(?:epiphany)[\s\/](\d+(?:\.\d+)+)/i) | 
 |  107       } | 
 |  108     } | 
 |  109     else if (/puffin/i.test(ua)) { | 
 |  110       result = { | 
 |  111         name: 'Puffin' | 
 |  112         , puffin: t | 
 |  113         , version: getFirstMatch(/(?:puffin)[\s\/](\d+(?:\.\d+)?)/i) | 
 |  114       } | 
 |  115     } | 
 |  116     else if (/sleipnir/i.test(ua)) { | 
 |  117       result = { | 
 |  118         name: 'Sleipnir' | 
 |  119         , sleipnir: t | 
 |  120         , version: getFirstMatch(/(?:sleipnir)[\s\/](\d+(?:\.\d+)+)/i) | 
 |  121       } | 
 |  122     } | 
 |  123     else if (/k-meleon/i.test(ua)) { | 
 |  124       result = { | 
 |  125         name: 'K-Meleon' | 
 |  126         , kMeleon: t | 
 |  127         , version: getFirstMatch(/(?:k-meleon)[\s\/](\d+(?:\.\d+)+)/i) | 
 |  128       } | 
 |  129     } | 
 |  130     else if (windowsphone) { | 
 |  131       result = { | 
 |  132         name: 'Windows Phone' | 
 |  133       , windowsphone: t | 
 |  134       } | 
 |  135       if (edgeVersion) { | 
 |  136         result.msedge = t | 
 |  137         result.version = edgeVersion | 
 |  138       } | 
 |  139       else { | 
 |  140         result.msie = t | 
 |  141         result.version = getFirstMatch(/iemobile\/(\d+(\.\d+)?)/i) | 
 |  142       } | 
 |  143     } | 
 |  144     else if (/msie|trident/i.test(ua)) { | 
 |  145       result = { | 
 |  146         name: 'Internet Explorer' | 
 |  147       , msie: t | 
 |  148       , version: getFirstMatch(/(?:msie |rv:)(\d+(\.\d+)?)/i) | 
 |  149       } | 
 |  150     } else if (chromeos) { | 
 |  151       result = { | 
 |  152         name: 'Chrome' | 
 |  153       , chromeos: t | 
 |  154       , chromeBook: t | 
 |  155       , chrome: t | 
 |  156       , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i) | 
 |  157       } | 
 |  158     } else if (/chrome.+? edge/i.test(ua)) { | 
 |  159       result = { | 
 |  160         name: 'Microsoft Edge' | 
 |  161       , msedge: t | 
 |  162       , version: edgeVersion | 
 |  163       } | 
 |  164     } | 
 |  165     else if (/vivaldi/i.test(ua)) { | 
 |  166       result = { | 
 |  167         name: 'Vivaldi' | 
 |  168         , vivaldi: t | 
 |  169         , version: getFirstMatch(/vivaldi\/(\d+(\.\d+)?)/i) || versionIdentifier | 
 |  170       } | 
 |  171     } | 
 |  172     else if (sailfish) { | 
 |  173       result = { | 
 |  174         name: 'Sailfish' | 
 |  175       , sailfish: t | 
 |  176       , version: getFirstMatch(/sailfish\s?browser\/(\d+(\.\d+)?)/i) | 
 |  177       } | 
 |  178     } | 
 |  179     else if (/seamonkey\//i.test(ua)) { | 
 |  180       result = { | 
 |  181         name: 'SeaMonkey' | 
 |  182       , seamonkey: t | 
 |  183       , version: getFirstMatch(/seamonkey\/(\d+(\.\d+)?)/i) | 
 |  184       } | 
 |  185     } | 
 |  186     else if (/firefox|iceweasel|fxios/i.test(ua)) { | 
 |  187       result = { | 
 |  188         name: 'Firefox' | 
 |  189       , firefox: t | 
 |  190       , version: getFirstMatch(/(?:firefox|iceweasel|fxios)[ \/](\d+(\.\d+)?)/i) | 
 |  191       } | 
 |  192       if (/\((mobile|tablet);[^\)]*rv:[\d\.]+\)/i.test(ua)) { | 
 |  193         result.firefoxos = t | 
 |  194       } | 
 |  195     } | 
 |  196     else if (silk) { | 
 |  197       result =  { | 
 |  198         name: 'Amazon Silk' | 
 |  199       , silk: t | 
 |  200       , version : getFirstMatch(/silk\/(\d+(\.\d+)?)/i) | 
 |  201       } | 
 |  202     } | 
 |  203     else if (/phantom/i.test(ua)) { | 
 |  204       result = { | 
 |  205         name: 'PhantomJS' | 
 |  206       , phantom: t | 
 |  207       , version: getFirstMatch(/phantomjs\/(\d+(\.\d+)?)/i) | 
 |  208       } | 
 |  209     } | 
 |  210     else if (/slimerjs/i.test(ua)) { | 
 |  211       result = { | 
 |  212         name: 'SlimerJS' | 
 |  213         , slimer: t | 
 |  214         , version: getFirstMatch(/slimerjs\/(\d+(\.\d+)?)/i) | 
 |  215       } | 
 |  216     } | 
 |  217     else if (/blackberry|\bbb\d+/i.test(ua) || /rim\stablet/i.test(ua)) { | 
 |  218       result = { | 
 |  219         name: 'BlackBerry' | 
 |  220       , blackberry: t | 
 |  221       , version: versionIdentifier || getFirstMatch(/blackberry[\d]+\/(\d+(\.\d+
     )?)/i) | 
 |  222       } | 
 |  223     } | 
 |  224     else if (webos) { | 
 |  225       result = { | 
 |  226         name: 'WebOS' | 
 |  227       , webos: t | 
 |  228       , version: versionIdentifier || getFirstMatch(/w(?:eb)?osbrowser\/(\d+(\.\
     d+)?)/i) | 
 |  229       }; | 
 |  230       /touchpad\//i.test(ua) && (result.touchpad = t) | 
 |  231     } | 
 |  232     else if (/bada/i.test(ua)) { | 
 |  233       result = { | 
 |  234         name: 'Bada' | 
 |  235       , bada: t | 
 |  236       , version: getFirstMatch(/dolfin\/(\d+(\.\d+)?)/i) | 
 |  237       }; | 
 |  238     } | 
 |  239     else if (tizen) { | 
 |  240       result = { | 
 |  241         name: 'Tizen' | 
 |  242       , tizen: t | 
 |  243       , version: getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.\d+)?)/i) || versio
     nIdentifier | 
 |  244       }; | 
 |  245     } | 
 |  246     else if (/qupzilla/i.test(ua)) { | 
 |  247       result = { | 
 |  248         name: 'QupZilla' | 
 |  249         , qupzilla: t | 
 |  250         , version: getFirstMatch(/(?:qupzilla)[\s\/](\d+(?:\.\d+)+)/i) || versio
     nIdentifier | 
 |  251       } | 
 |  252     } | 
 |  253     else if (/chromium/i.test(ua)) { | 
 |  254       result = { | 
 |  255         name: 'Chromium' | 
 |  256         , chromium: t | 
 |  257         , version: getFirstMatch(/(?:chromium)[\s\/](\d+(?:\.\d+)?)/i) || versio
     nIdentifier | 
 |  258       } | 
 |  259     } | 
 |  260     else if (/chrome|crios|crmo/i.test(ua)) { | 
 |  261       result = { | 
 |  262         name: 'Chrome' | 
 |  263         , chrome: t | 
 |  264         , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i) | 
 |  265       } | 
 |  266     } | 
 |  267     else if (android) { | 
 |  268       result = { | 
 |  269         name: 'Android' | 
 |  270         , version: versionIdentifier | 
 |  271       } | 
 |  272     } | 
 |  273     else if (/safari|applewebkit/i.test(ua)) { | 
 |  274       result = { | 
 |  275         name: 'Safari' | 
 |  276       , safari: t | 
 |  277       } | 
 |  278       if (versionIdentifier) { | 
 |  279         result.version = versionIdentifier | 
 |  280       } | 
 |  281     } | 
 |  282     else if (iosdevice) { | 
 |  283       result = { | 
 |  284         name : iosdevice == 'iphone' ? 'iPhone' : iosdevice == 'ipad' ? 'iPad' :
      'iPod' | 
 |  285       } | 
 |  286       // WTF: version is not part of user agent in web apps | 
 |  287       if (versionIdentifier) { | 
 |  288         result.version = versionIdentifier | 
 |  289       } | 
 |  290     } | 
 |  291     else if(/googlebot/i.test(ua)) { | 
 |  292       result = { | 
 |  293         name: 'Googlebot' | 
 |  294       , googlebot: t | 
 |  295       , version: getFirstMatch(/googlebot\/(\d+(\.\d+))/i) || versionIdentifier | 
 |  296       } | 
 |  297     } | 
 |  298     else { | 
 |  299       result = { | 
 |  300         name: getFirstMatch(/^(.*)\/(.*) /), | 
 |  301         version: getSecondMatch(/^(.*)\/(.*) /) | 
 |  302      }; | 
 |  303    } | 
 |  304  | 
 |  305     // set webkit or gecko flag for browsers based on these engines | 
 |  306     if (!result.msedge && /(apple)?webkit/i.test(ua)) { | 
 |  307       if (/(apple)?webkit\/537\.36/i.test(ua)) { | 
 |  308         result.name = result.name || "Blink" | 
 |  309         result.blink = t | 
 |  310       } else { | 
 |  311         result.name = result.name || "Webkit" | 
 |  312         result.webkit = t | 
 |  313       } | 
 |  314       if (!result.version && versionIdentifier) { | 
 |  315         result.version = versionIdentifier | 
 |  316       } | 
 |  317     } else if (!result.opera && /gecko\//i.test(ua)) { | 
 |  318       result.name = result.name || "Gecko" | 
 |  319       result.gecko = t | 
 |  320       result.version = result.version || getFirstMatch(/gecko\/(\d+(\.\d+)?)/i) | 
 |  321     } | 
 |  322  | 
 |  323     // set OS flags for platforms that have multiple browsers | 
 |  324     if (!result.windowsphone && !result.msedge && (android || result.silk)) { | 
 |  325       result.android = t | 
 |  326     } else if (!result.windowsphone && !result.msedge && iosdevice) { | 
 |  327       result[iosdevice] = t | 
 |  328       result.ios = t | 
 |  329     } else if (mac) { | 
 |  330       result.mac = t | 
 |  331     } else if (xbox) { | 
 |  332       result.xbox = t | 
 |  333     } else if (windows) { | 
 |  334       result.windows = t | 
 |  335     } else if (linux) { | 
 |  336       result.linux = t | 
 |  337     } | 
 |  338  | 
 |  339     function getWindowsVersion (s) { | 
 |  340       switch (s) { | 
 |  341         case 'NT': return 'NT' | 
 |  342         case 'XP': return 'XP' | 
 |  343         case 'NT 5.0': return '2000' | 
 |  344         case 'NT 5.1': return 'XP' | 
 |  345         case 'NT 5.2': return '2003' | 
 |  346         case 'NT 6.0': return 'Vista' | 
 |  347         case 'NT 6.1': return '7' | 
 |  348         case 'NT 6.2': return '8' | 
 |  349         case 'NT 6.3': return '8.1' | 
 |  350         case 'NT 10.0': return '10' | 
 |  351         default: return undefined | 
 |  352       } | 
 |  353     } | 
 |  354  | 
 |  355     // OS version extraction | 
 |  356     var osVersion = ''; | 
 |  357     if (result.windows) { | 
 |  358       osVersion = getWindowsVersion(getFirstMatch(/Windows ((NT|XP)( \d\d?.\d)?)
     /i)) | 
 |  359     } else if (result.windowsphone) { | 
 |  360       osVersion = getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i); | 
 |  361     } else if (result.mac) { | 
 |  362       osVersion = getFirstMatch(/Mac OS X (\d+([_\.\s]\d+)*)/i); | 
 |  363       osVersion = osVersion.replace(/[_\s]/g, '.'); | 
 |  364     } else if (iosdevice) { | 
 |  365       osVersion = getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i); | 
 |  366       osVersion = osVersion.replace(/[_\s]/g, '.'); | 
 |  367     } else if (android) { | 
 |  368       osVersion = getFirstMatch(/android[ \/-](\d+(\.\d+)*)/i); | 
 |  369     } else if (result.webos) { | 
 |  370       osVersion = getFirstMatch(/(?:web|hpw)os\/(\d+(\.\d+)*)/i); | 
 |  371     } else if (result.blackberry) { | 
 |  372       osVersion = getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i); | 
 |  373     } else if (result.bada) { | 
 |  374       osVersion = getFirstMatch(/bada\/(\d+(\.\d+)*)/i); | 
 |  375     } else if (result.tizen) { | 
 |  376       osVersion = getFirstMatch(/tizen[\/\s](\d+(\.\d+)*)/i); | 
 |  377     } | 
 |  378     if (osVersion) { | 
 |  379       result.osversion = osVersion; | 
 |  380     } | 
 |  381  | 
 |  382     // device type extraction | 
 |  383     var osMajorVersion = !result.windows && osVersion.split('.')[0]; | 
 |  384     if ( | 
 |  385          tablet | 
 |  386       || nexusTablet | 
 |  387       || iosdevice == 'ipad' | 
 |  388       || (android && (osMajorVersion == 3 || (osMajorVersion >= 4 && !mobile))) | 
 |  389       || result.silk | 
 |  390     ) { | 
 |  391       result.tablet = t | 
 |  392     } else if ( | 
 |  393          mobile | 
 |  394       || iosdevice == 'iphone' | 
 |  395       || iosdevice == 'ipod' | 
 |  396       || android | 
 |  397       || nexusMobile | 
 |  398       || result.blackberry | 
 |  399       || result.webos | 
 |  400       || result.bada | 
 |  401     ) { | 
 |  402       result.mobile = t | 
 |  403     } | 
 |  404  | 
 |  405     // Graded Browser Support | 
 |  406     // http://developer.yahoo.com/yui/articles/gbs | 
 |  407     if (result.msedge || | 
 |  408         (result.msie && result.version >= 10) || | 
 |  409         (result.yandexbrowser && result.version >= 15) || | 
 |  410                     (result.vivaldi && result.version >= 1.0) || | 
 |  411         (result.chrome && result.version >= 20) || | 
 |  412         (result.samsungBrowser && result.version >= 4) || | 
 |  413         (result.firefox && result.version >= 20.0) || | 
 |  414         (result.safari && result.version >= 6) || | 
 |  415         (result.opera && result.version >= 10.0) || | 
 |  416         (result.ios && result.osversion && result.osversion.split(".")[0] >= 6) 
     || | 
 |  417         (result.blackberry && result.version >= 10.1) | 
 |  418         || (result.chromium && result.version >= 20) | 
 |  419         ) { | 
 |  420       result.a = t; | 
 |  421     } | 
 |  422     else if ((result.msie && result.version < 10) || | 
 |  423         (result.chrome && result.version < 20) || | 
 |  424         (result.firefox && result.version < 20.0) || | 
 |  425         (result.safari && result.version < 6) || | 
 |  426         (result.opera && result.version < 10.0) || | 
 |  427         (result.ios && result.osversion && result.osversion.split(".")[0] < 6) | 
 |  428         || (result.chromium && result.version < 20) | 
 |  429         ) { | 
 |  430       result.c = t | 
 |  431     } else result.x = t | 
 |  432  | 
 |  433     return result | 
 |  434   } | 
 |  435  | 
 |  436   var bowser = detect(typeof navigator !== 'undefined' ? navigator.userAgent || 
     '' : '') | 
 |  437  | 
 |  438   bowser.test = function (browserList) { | 
 |  439     for (var i = 0; i < browserList.length; ++i) { | 
 |  440       var browserItem = browserList[i]; | 
 |  441       if (typeof browserItem=== 'string') { | 
 |  442         if (browserItem in bowser) { | 
 |  443           return true; | 
 |  444         } | 
 |  445       } | 
 |  446     } | 
 |  447     return false; | 
 |  448   } | 
 |  449  | 
 |  450   /** | 
 |  451    * Get version precisions count | 
 |  452    * | 
 |  453    * @example | 
 |  454    *   getVersionPrecision("1.10.3") // 3 | 
 |  455    * | 
 |  456    * @param  {string} version | 
 |  457    * @return {number} | 
 |  458    */ | 
 |  459   function getVersionPrecision(version) { | 
 |  460     return version.split(".").length; | 
 |  461   } | 
 |  462  | 
 |  463   /** | 
 |  464    * Array::map polyfill | 
 |  465    * | 
 |  466    * @param  {Array} arr | 
 |  467    * @param  {Function} iterator | 
 |  468    * @return {Array} | 
 |  469    */ | 
 |  470   function map(arr, iterator) { | 
 |  471     var result = [], i; | 
 |  472     if (Array.prototype.map) { | 
 |  473       return Array.prototype.map.call(arr, iterator); | 
 |  474     } | 
 |  475     for (i = 0; i < arr.length; i++) { | 
 |  476       result.push(iterator(arr[i])); | 
 |  477     } | 
 |  478     return result; | 
 |  479   } | 
 |  480  | 
 |  481   /** | 
 |  482    * Calculate browser version weight | 
 |  483    * | 
 |  484    * @example | 
 |  485    *   compareVersions(['1.10.2.1',  '1.8.2.1.90'])    // 1 | 
 |  486    *   compareVersions(['1.010.2.1', '1.09.2.1.90']);  // 1 | 
 |  487    *   compareVersions(['1.10.2.1',  '1.10.2.1']);     // 0 | 
 |  488    *   compareVersions(['1.10.2.1',  '1.0800.2']);     // -1 | 
 |  489    * | 
 |  490    * @param  {Array<String>} versions versions to compare | 
 |  491    * @return {Number} comparison result | 
 |  492    */ | 
 |  493   function compareVersions(versions) { | 
 |  494     // 1) get common precision for both versions, for example for "10.0" and "9"
      it should be 2 | 
 |  495     var precision = Math.max(getVersionPrecision(versions[0]), getVersionPrecisi
     on(versions[1])); | 
 |  496     var chunks = map(versions, function (version) { | 
 |  497       var delta = precision - getVersionPrecision(version); | 
 |  498  | 
 |  499       // 2) "9" -> "9.0" (for precision = 2) | 
 |  500       version = version + new Array(delta + 1).join(".0"); | 
 |  501  | 
 |  502       // 3) "9.0" -> ["000000000"", "000000009"] | 
 |  503       return map(version.split("."), function (chunk) { | 
 |  504         return new Array(20 - chunk.length).join("0") + chunk; | 
 |  505       }).reverse(); | 
 |  506     }); | 
 |  507  | 
 |  508     // iterate in reverse order by reversed chunks array | 
 |  509     while (--precision >= 0) { | 
 |  510       // 4) compare: "000000009" > "000000010" = false (but "9" > "10" = true) | 
 |  511       if (chunks[0][precision] > chunks[1][precision]) { | 
 |  512         return 1; | 
 |  513       } | 
 |  514       else if (chunks[0][precision] === chunks[1][precision]) { | 
 |  515         if (precision === 0) { | 
 |  516           // all version chunks are same | 
 |  517           return 0; | 
 |  518         } | 
 |  519       } | 
 |  520       else { | 
 |  521         return -1; | 
 |  522       } | 
 |  523     } | 
 |  524   } | 
 |  525  | 
 |  526   /** | 
 |  527    * Check if browser is unsupported | 
 |  528    * | 
 |  529    * @example | 
 |  530    *   bowser.isUnsupportedBrowser({ | 
 |  531    *     msie: "10", | 
 |  532    *     firefox: "23", | 
 |  533    *     chrome: "29", | 
 |  534    *     safari: "5.1", | 
 |  535    *     opera: "16", | 
 |  536    *     phantom: "534" | 
 |  537    *   }); | 
 |  538    * | 
 |  539    * @param  {Object}  minVersions map of minimal version to browser | 
 |  540    * @param  {Boolean} [strictMode = false] flag to return false if browser wasn
     't found in map | 
 |  541    * @param  {String}  [ua] user agent string | 
 |  542    * @return {Boolean} | 
 |  543    */ | 
 |  544   function isUnsupportedBrowser(minVersions, strictMode, ua) { | 
 |  545     var _bowser = bowser; | 
 |  546  | 
 |  547     // make strictMode param optional with ua param usage | 
 |  548     if (typeof strictMode === 'string') { | 
 |  549       ua = strictMode; | 
 |  550       strictMode = void(0); | 
 |  551     } | 
 |  552  | 
 |  553     if (strictMode === void(0)) { | 
 |  554       strictMode = false; | 
 |  555     } | 
 |  556     if (ua) { | 
 |  557       _bowser = detect(ua); | 
 |  558     } | 
 |  559  | 
 |  560     var version = "" + _bowser.version; | 
 |  561     for (var browser in minVersions) { | 
 |  562       if (minVersions.hasOwnProperty(browser)) { | 
 |  563         if (_bowser[browser]) { | 
 |  564           if (typeof minVersions[browser] !== 'string') { | 
 |  565             throw new Error('Browser version in the minVersion map should be a s
     tring: ' + browser + ': ' + String(minVersions)); | 
 |  566           } | 
 |  567  | 
 |  568           // browser version and min supported version. | 
 |  569           return compareVersions([version, minVersions[browser]]) < 0; | 
 |  570         } | 
 |  571       } | 
 |  572     } | 
 |  573  | 
 |  574     return strictMode; // not found | 
 |  575   } | 
 |  576  | 
 |  577   /** | 
 |  578    * Check if browser is supported | 
 |  579    * | 
 |  580    * @param  {Object} minVersions map of minimal version to browser | 
 |  581    * @param  {Boolean} [strictMode = false] flag to return false if browser wasn
     't found in map | 
 |  582    * @param  {String}  [ua] user agent string | 
 |  583    * @return {Boolean} | 
 |  584    */ | 
 |  585   function check(minVersions, strictMode, ua) { | 
 |  586     return !isUnsupportedBrowser(minVersions, strictMode, ua); | 
 |  587   } | 
 |  588  | 
 |  589   bowser.isUnsupportedBrowser = isUnsupportedBrowser; | 
 |  590   bowser.compareVersions = compareVersions; | 
 |  591   bowser.check = check; | 
 |  592  | 
 |  593   /* | 
 |  594    * Set our detect method to the main bowser object so we can | 
 |  595    * reuse it to test other user agents. | 
 |  596    * This is needed to implement future tests. | 
 |  597    */ | 
 |  598   bowser._detect = detect; | 
 |  599  | 
 |  600   return bowser | 
 |  601 }); | 
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