答独立开发很酷
你可以试试下面的方法来检查浏览器版本。
<!DOCTYPE html>
<html>
<body>
<p>What is the name(s) of your browser?</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
if((navigator.userAgent.indexOf("Opera") || navigator.userAgent.indexOf('OPR')) != -1 )
{
alert('Opera');
}
else if(navigator.userAgent.indexOf("Chrome") != -1 )
{
alert('Chrome');
}
else if(navigator.userAgent.indexOf("Safari") != -1)
{
alert('Safari');
}
else if(navigator.userAgent.indexOf("Firefox") != -1 )
{
alert('Firefox');
}
else if((navigator.userAgent.indexOf("MSIE") != -1 ) || (!!document.documentMode == true )) //IF IE > 10
{
alert('IE');
}
else
{
alert('unknown');
}
}
</script>
</body>
</html>
如果你只需要知道IE浏览器版本,那么你可以按照下面的代码。此代码适用于从IE6到IE11的版本
<!DOCTYPE html>
<html>
<body>
<p>Click on Try button to check IE Browser version.</p>
<button onclick="getInternetExplorerVersion()">Try it</button>
<p id="demo"></p>
<script>
function getInternetExplorerVersion() {
var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");
var rv = -1;
if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) // If Internet Explorer, return version numbe
{
if (isNaN(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))))) {
//For IE 11 >
if (navigator.appName == 'Netscape') {
var ua = navigator.userAgent;
var re = new RegExp("Trident/.*rv:([0-9]{1,}[\.0-9]{0,})");
if (re.exec(ua) != null) {
rv = parseFloat(RegExp.$1);
alert(rv);
}
}
else {
alert('otherbrowser');
}
}
else {
//For < IE11
alert(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))));
}
return false;
}}
</script>
</body>
</html>