$('.mydiv ul li:nth-child(4)').addClass("nth");
There are atleast 8 li's 开发者_开发问答in there but it only selects 4th but not 8th?
$('.mydiv ul li:nth-child(4n)').addClass("nth");
pay attention to the 4n
jQuery :nth-child selecting just one?
$(\'.mydiv ul li:nth-child(4)\').addClass(\"nth\");
There are atleast 8 li\'s 开发者_开发问答in there but it only selects 4th but not 8th?$(\'.mydiv ul li:nth-child(4n)\').addClass(\"nth\");
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