進階 JavaScript 執行個體01

來源:互聯網
上載者:User
檢測瀏覽器及版本
<html><body><script type="text/javascript">var browser=navigator.appNamevar b_version=navigator.appVersionvar version=parseFloat(b_version)document.write("瀏覽器名稱:"+ browser)document.write("<br />")document.write("瀏覽器版本:"+ version)</script></body></html>

檢測瀏覽器的更多資訊
<html><body><script type="text/javascript">document.write("<p>瀏覽器:")document.write(navigator.appName + "</p>")document.write("<p>瀏覽器版本:")document.write(navigator.appVersion + "</p>")document.write("<p>代碼:")document.write(navigator.appCodeName + "</p>")document.write("<p>平台:")document.write(navigator.platform + "</p>")document.write("<p>Cookies 啟用:")document.write(navigator.cookieEnabled + "</p>")document.write("<p>瀏覽器的使用者代理程式前序:")document.write(navigator.userAgent + "</p>")</script></body></html>

檢測瀏覽器的全部資訊
<html><body><script type="text/javascript">var x = navigator;document.write("CodeName=" + x.appCodeName);document.write("<br />");document.write("MinorVersion=" + x.appMinorVersion);document.write("<br />");document.write("Name=" + x.appName);document.write("<br />");document.write("Version=" + x.appVersion);document.write("<br />");document.write("CookieEnabled=" + x.cookieEnabled);document.write("<br />");document.write("CPUClass=" + x.cpuClass);document.write("<br />");document.write("OnLine=" + x.onLine);document.write("<br />");document.write("Platform=" + x.platform);document.write("<br />");document.write("UA=" + x.userAgent);document.write("<br />");document.write("BrowserLanguage=" + x.browserLanguage);document.write("<br />");document.write("SystemLanguage=" + x.systemLanguage);document.write("<br />");document.write("UserLanguage=" + x.userLanguage);</script></body></html>

根據瀏覽器類型提醒使用者
<html><head><script type="text/javascript">function detectBrowser(){var browser=navigator.appNamevar b_version=navigator.appVersionvar version=parseFloat(b_version)if ((browser=="Netscape"||browser=="Microsoft Internet Explorer") && (version>=4))  {alert("您的瀏覽器夠先進了!")}else  {alert("是時候升級您的瀏覽器了!")}}</script></head><body onload="detectBrowser()"></body></html>

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