javascript - Browser and Device detection variables.

ready-detection-var.js

var isChrome    = navigator.userAgent.indexOf('Chrome') > -1,
    isFireFox   = navigator.userAgent.toLowerCase().indexOf('firefox') > -1,
    isSafari    = navigator.userAgent.indexOf('Safari') > -1,
    isIE        = navigator.appName.indexOf('Internet Explorer')!=-1,
    isIE7       = navigator.appVersion.indexOf("MSIE 7.") != -1,
    isIE8       = navigator.appVersion.indexOf("MSIE 8.") != -1;
    if ((isChrome)&&(isSafari)) {isSafari=false;}

/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ? isTabletMobile = true : isTabletMobile = false;
/iPad/i.test(navigator.userAgent) ? isTablet = true : isTablet = false;
/Android|webOS|iPhone|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ? isMobile = true : isMobile = false;
/Android/i.test(navigator.userAgent) ? isAndroid = true : isAndroid = false;

// Sample usage:
if ( isTabletMobile ) {
  // some code
}