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A collection of js judgment methods for ie (including regular expressions) short and classic codes [original]_javascript skills

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Release： 2016-05-16 19:02:21
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Whether it is Opera:


[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute
]

Whether it is IE:

[Ctrl A Select all Note:
If you need to introduce external Js, you need to refresh to execute
]
Whether it is ie7: Copy code
The code is as follows:


<script> <br>(is_ie && /msie 7.0/ i.test(navigator.userAgent)); </div></script>

[Ctrl A Select all Note:
If you need to introduce external Js, you need to refresh to execute
]

[Ctrl A Select all Note:
If you need to introduce external Js, you need to refresh to execute
]
javascript judgment ie Version
<script> is_opera = /opera/i.test(navigator.userAgent); alert(is_opera); </script>[Ctrl A select all Note: <script> is_opera = /opera/i.test(navigator.userAgent); var is_ie = (/msie/i.test(navigator.userAgent) && !is_opera) alert(is_ie); </script>If you need to introduce external Js, you need to refresh to execute <script> var isIe = /msie/i.test(navigator.userAgent); alert(isIe); </script>]<script> if(document.uniqueID){ alert("脚本在IE浏览器中运行！"); }else{ alert("脚本在非IE浏览器中运行！"); } </script> <script> function Browser() { var ua, s, i; this.isIE = false; // Internet Explorer this.isNS = false; // Netscape this.version = null; ua = navigator.userAgent; s = "MSIE"; if ((i = ua.indexOf(s)) >= 0) { this.isIE = true; this.version = parseFloat(ua.substr(i + s.length)); return; } s = "Netscape6/"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = parseFloat(ua.substr(i + s.length)); return; } // Treat any other "Gecko" browser as NS 6.1. s = "Gecko"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = 6.1; return; } } var browser = new Browser(); alert(browser); </script>
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