[英]What is wrong with my firefox browser test?
I want to test if the user is using Firefox under version 3.0, if yes trigger the function and here's what I ended up with! 我想测试用户是否正在使用3.0版以下的Firefox,如果可以,则触发该功能,这就是我最终得到的结果! Now I use the version 14.0 of Firefox to test it out and it still trigger the function! 现在,我使用Firefox 14.0版本对其进行测试,它仍会触发该功能! Anyone can help a beginner? 任何人都可以帮助初学者吗? Thanks! 谢谢!
script: 脚本:
if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent)){ //test for Firefox/x.x or Firefox x.x (ignoring remaining digits);
var ffversion= Number(RegExp.$1) // capture x.x portion and store as a number
if (ffversion<=3)
{
Here: 这里:
var result = /Firefox[\/\s](\d+\.\d+)/.exec( navigator.userAgent );
if ( result && +result[1] <= 3 ) {
// do your thing
}
Note that feature testing would make a better solution: 请注意,功能测试将提供更好的解决方案:
if ( browser_doesnt_implement_this_feature ) {
implementIt();
}
You could just do it in one regex test: 您可以在一个正则表达式测试中做到这一点:
if(/Firefox[\/\s]([0-2]\.|3\.0)/g.test(navigator.userAgent)){
// do old FF stuff
}
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