IE javascript重定向 [英] IE javascript redirection

问题描述

我有一个javascript函数，可将用户重定向到差异页面.就像这样...

I have a javascript function which redirects user to a diff page. It goes like this...

redirect : function(url)
{
    if(!url)
        return false;

    alert(url);
    if (this.browserClass.isW3C) //IE 6.X comes here
    {
        window.location.href = url;
    }
    else if(this.browserClass.isIE4)
    {
        window.location.href = url;
    }
    else if (this.browserClass.isNN4)
    {
        window.location = url;
    }
    else
    {
        window.location = url;
    }
    return false;
},

但是问题是这在IE(Internet Explorer 6.X)中不起作用.经过短暂的战斗，当我将代码更改为此时，我看到IE正在重定向-

But the problem is that this does not work in IE (internet explorer 6.X). After a short battle I saw that IE was redirecting when I change the code to this -

    if (this.browserClass.isW3C)
        setTimeout("location.href = '" +url+"'", 0);

问题已解决.但是，这是怎么回事?有人可以教育我吗?还是仅仅是那些令人发麻的IE特质...

Problem is solved. But what's going on here? Could someone educate me? or is it just one of those mind numbing idiosyncrasies of IE...

推荐答案

此功能完全浪费时间.分配给location.href在所有当前存在的浏览器中同样有效. this.browserClass.isNN4暗示此代码正在担心本世纪不存在的东西.好像老旧的浏览器嗅探还不够糟糕. (无论如何，即使在Netscape中，这两个任务都起作用.)

This function is a complete waste of time. Assignment to location.href works equally well in all currently extant browsers. this.browserClass.isNN4 is a hint that this code is worrying about stuff that doesn't exist in this century. As if being stinky old browser-sniffing wasn't bad enough. (Anyway even in Netscape, both these assignments worked.)

setTimeout("location.href = '" +url+"'", 0);

尽量不要将字符串传递给setTimeout，这与eval是一样的事情，但都存在相同的问题(例如，您的URL包含撇号...繁荣).传递一个函数，如有必要，传递一个内联函数(setTimeout(function() { location.href= url; }, 0);).

Try not to pass strings to setTimeout, it's the same thing as eval with all the same problems (eg. your URL contains an apostrophe... boom). Pass a function, an inline one if necessary (setTimeout(function() { location.href= url; }, 0);).

但是，这听起来像是我在链接中捕获一个click或mousedown事件，而不是取消该事件(通过从事件处理程序返回false).因此，遵循默认操作的链接可能会发生，并且可能会因浏览器而覆盖location.href导航.

However what this smells like to me is you're trapping a click or mousedown event on a link, and not cancelling the event (by returning false from the event handler). Consequently the link following default action can occur and may, depending on browser, override the location.href navigation.

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