jQuery:如何计算“显示”不是“无”的元素数量?
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jQuery: How to count the number of elements which "display" isn't "none"?
提问by Misha Moroshko
I use show()
and hide()
to show and hide rows in a table.
我使用show()
和hide()
来显示和隐藏表格中的行。
How could I count the number of non-hidden rows (more accurately, rows with display
!= none
) ?
我如何计算非隐藏行的数量(更准确地说,是带有display
!= 的行none
)?
Note that:
注意:
$('tr:visible').length
won't work because if the table itself has display=none
, the result will always be 0.
将不起作用,因为如果表本身有display=none
,结果将始终为 0。
回答by Richard Dalton
Try this:
尝试这个:
$('tr:not([style*="display: none"])').length
回答by Alnitak
Filter your rows based on their actual CSS property:
根据行的实际 CSS 属性过滤行:
$('tr').filter(function() {
return $(this).css('display') !== 'none';
}).length;