javascript - Affect all elements that doesn't have an index of?

Question

I am trying to hide all elements with class .dropdown-menu except the 2nd one:

$('.dropdown-menu').not().eq(1).hide();

But it's not working, How to do this?

Answer 1

尝试这个：

$('.dropdown-menu:not(:eq(1))').hide();

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您正在使用:not incorecctly，这是使用:not的解决方案（它接受选择器！）：

$('.dropdown-menu').not(':eq(1)').hide();