jquery - 变量nth-child？

Question

嘿.我想将一个变量作为参数传递给第n个子选择器.
这不起作用:

var position = 5;

$("#daddy > div:nth-child(position)").animate({
    opacity: 0.01,
}, 500);?

虽然可以吗？干杯,杰克

Answer 1

尝试:

var position = 5;

$("#daddy > div:nth-child(" + position + ")").animate({
    opacity: 0.01,
}, 500);?

Answer 2

您需要引用：

var position = 5;

$("#daddy > div:nth-child(" + position + ")").animate({
   opacity: 0.01,
}, 500);?

Answer 3

尝试：

var position = 5;

$("#daddy > div:nth-child(" + position + ")").animate({
    opacity: 0.01,
}, 500);?