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恨透了IE嗎? 以下我整理了偵測IE的Javascript,目前最高支援到IE12,原理就是判斷user-agent。
- // detect IE
- var IEversion = detectIE();
- if (IEversion) {
- alert('IE version: '+IEversion);
- } else {
- alert('Not IE browser');
- };
- /**
- * detect IE
- * returns version of IE or false, if browser is not Internet Explorer
- */
- function detectIE() {
- var ua = window.navigator.userAgent;
- // test values
- // IE 10
- //ua = 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0)';
- // IE 11
- //ua = 'Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko';
- // IE 12 / Spartan
- //ua = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36 Edge/12.0';
- var msie = ua.indexOf('MSIE ');
- if (msie > 0) {
- // IE 10 or older => return version number
- return parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);
- }
- var trident = ua.indexOf('Trident/');
- if (trident > 0) {
-
- var rv = ua.indexOf('rv:');
- // IE 11 => return version number
- return parseInt(ua.substring(rv + 3, ua.indexOf('.', rv)), 10);
- }
- var edge = ua.indexOf('Edge/');
- if (edge > 0) {
- // IE 12 => return version number
- return parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);
- }
- // other browser
- return false;
- }
複製代碼 Source參考:http://codepen.io/gapcode/pen/vEJNZN |
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