第一部分判斷瀏覽器的類型javascript
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title></head><body> <div> <div> <input type="text" id="element"> <input type="button" id="btn" value="BUTTON"> </div> </div> <script type="text/javascript"> /*document.getElementById('btn').onclick = function(){ if(navigator.appName.indexOf("Microsoft")!= -1){ document.getElementById('element').innerText = "my text"; document.write("我是ie瀏覽器") alert("我是ie瀏覽器"); } else{ document.getElementById('element').textContent = "my text"; alert("我不是ie瀏覽器"); } }; */ function myBrowser(){ var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串 var isOpera = userAgent.indexOf("Opera") > -1; if (isOpera) { return "Opera" }; //判斷是否Opera瀏覽器 if (userAgent.indexOf("Firefox") > -1) { return "FF"; } //判斷是否Firefox瀏覽器 if (userAgent.indexOf("Chrome") > -1){ return "Chrome"; } if (userAgent.indexOf("Safari") > -1) { return "Safari"; } //判斷是否Safari瀏覽器 if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera) { return "IE"; }; //判斷是否IE瀏覽器 } //如下是調用上面的函數 var mb = myBrowser(); if ("IE" == mb) { alert("我是 IE"); } if ("FF" == mb) { alert("我是 Firefox"); } if ("Chrome" == mb) { alert("我是 Chrome"); } if ("Opera" == mb) { alert("我是 Opera"); } if ("Safari" == mb) { alert("我是 Safari"); } //console.log(navigator.appName); </script></body></html>第二部分瀏覽器的版本function myBrowser(){ var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串 var isOpera = userAgent.indexOf("Opera") > -1; //判斷是否Opera瀏覽器 var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判斷是否IE瀏覽器 var isFF = userAgent.indexOf("Firefox") > -1; //判斷是否Firefox瀏覽器 var isSafari = userAgent.indexOf("Safari") > -1; //判斷是否Safari瀏覽器 if (isIE) { var IE5 = IE55 = IE6 = IE7 = IE8 = false; var reIE = new RegExp("MSIE (\\d+\\.\\d+);"); reIE.test(userAgent); var fIEVersion = parseFloat(RegExp["$1"]); IE55 = fIEVersion == 5.5; IE6 = fIEVersion == 6.0; IE7 = fIEVersion == 7.0; IE8 = fIEVersion == 8.0; if (IE55) { return "IE55"; } if (IE6) { return "IE6"; } if (IE7) { return "IE7"; } if (IE8) { return "IE8"; } }//isIE end if (isFF) { return "FF"; } if (isOpera) { return "Opera"; }}//myBrowser() end//如下是調用上面的函數if (myBrowser() == "FF") { alert("我是 Firefox");}if (myBrowser() == "Opera") { alert("我是 Opera");}if (myBrowser() == "Safari") { alert("我是 Safari");}if (myBrowser() == "IE55") { alert("我是 IE5.5");}if (myBrowser() == "IE6") { alert("我是 IE6");}if (myBrowser() == "IE7") { alert("我是 IE7");}if (myBrowser() == "IE8") { alert("我是 IE8");}