How to Get Browser Type

// Opera 8.0+
 var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
 // Firefox 1.0+
var isFirefox = typeof InstallTrigger !== 'undefined';
// At least Safari 3+: "[object HTMLElementConstructor]"
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
 // Internet Explorer 6-11
 var isIE = /*@cc_on!@*/false || !!document.documentMode;
 // Edge 20+
 var isEdge = !isIE && !!window.StyleMedia;
 // Chrome 1+
 var isChrome = !!window.chrome && !!window.chrome.webstore;
 // Blink engine detection
 var isBlink = (isChrome || isOpera) && !!window.CSS;
 var output = 'Detecting browsers by ducktyping:

---

'; output += 'isFirefox: ' + isFirefox + '
'; output += 'isChrome: ' + isChrome + '
'; output += 'isSafari: ' + isSafari + '
'; output += 'isOpera: ' + isOpera + '
'; output += 'isIE: ' + isIE + '
'; output += 'isEdge: ' + isEdge + '
'; output += 'isBlink: ' + isBlink + '
'; document.body.innerHTML = output;