jQuery多个选择器,$(this)参考? [英] JQuery Multiple selectors, $(this) reference?
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问题描述
考虑到以下情况
$("#identifier div:first, #idetifier2").fadeOut(300,function() {
// I need to reference just the '#identifier div:first' element
// however $(this) will grab both selectors
});
除了再次调用$(#identifier div:first")之外,还有更好的方法吗?
Is there a better way to go about this other than just calling $("#identifier div:first") again?
推荐答案
否,它将分别为每个句柄调用该函数.
No, it'll call the function for each handle separately.
选择器中的逗号等于说:
The comma in your selector is equivalent to saying:
$("#identifier div:first").fadeOut(300,function() {
// $(this) -> '#identifier div:first'
});
$("#idetifier2").fadeOut(300,function() {
// $(this) -> '#identifier2'
});
您可以说(未经测试):
You can check by saying (untested):
$("#identifier div:first, #idetifier2").fadeOut(300,function() {
if($(this).is("#identifier div:first") {
// do something
}
});
但是,如果您想做不同的事情(如您的帖子所显示的那样),则最好将它们分别附加.
However, if you want to do different things (as what seems from your post), its better to attach them separately.
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