javascript - 如果没有类(class)，则自动单击按钮

Question

如果 a href 没有类 .active，我会尝试触发并自动单击它。我的目标是创建类似 Tom from myspace 的东西，以自动将成员添加为 friend 。但是这段代码似乎忽略了按钮是否已被单击(已经有类.active)并且当我刷新页面时它会再次自动单击。这是我的代码

if ($(".follow-1:not(.active)")) {
    jQuery(function(){
        jQuery('.follow-1').click(SK_registerFollow(1));
    });
} else {
    // do nothing   
}

我也尝试过，但也没有成功:

if ($('.follow-1').hasClass("active")) {
    // do nothing
} else {
    jQuery(function(){
        jQuery('.follow-1').click(SK_registerFollow(1));
    });
}

------------- 已更新 --------------

HTML代码是这样的:

<a class="follow-1" onclick="SK_registerFollow(1);">follow</a>

Answer 1

好吧，这里有很多问题，所以我将内联评论:

// $() will always return a function, so this will always fire
if ($(".follow-1:not(.active)")) {
    // This is waiting for a document.ready, so you need to do this on the outside
    /// of your code
    jQuery(function(){
        // This will execute SK_registerFollow immediately
        // and send the result to your handler. Probably not what you want
        jQuery('.follow-1').click(SK_registerFollow(1));
    });
} else {
    // No need to ever have a block which 'does nothing'
    // do nothing   
}

这是一个固定版本:

// Wait for DOM to become ready
$(function() {
    // Store a reference to the link, so we don't need to search for it twice
    var $follow = $(".follow-1");
    // Test to see if the link has the active class
    if (!$follow.hasClass("active")) {
        $follow.click(); // This will trigger the appropriate onclick handler
    }
});

jsFiddle Demo