大约有 47,000 项符合查询结果（耗时：0.0645秒） [XML]
Determining whether jQuery has not found any element
...t').length is what you're looking for. (If it finds nothing, this will === 0.) So your conditional statement should probably be:
if($('#id').length) { /* code if found */ } else { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the...
What's the opposite of head? I want all but the first N lines of a file
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-n, --lines=K output the last K lines, instead of the last 10;
or use -n +K to output lines starting with the Kth
So to filter out the first 2 lines, -n +3 should give you the output you are looking for (start from 3rd).
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How can I change a file's encoding with vim?
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answered Apr 22 '09 at 16:25
Brian AgnewBrian Agnew
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How to remove debugging from an Express app?
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Adaptabi
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answered Jul 24 '11 at 15:44
AlfredAlfred
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git ahead/behind info between master and branch?
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Steve Chambers
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answered Jan 14 '15 at 9:52
user1834095u...
Sorting data based on second column of a file
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Matt RyallMatt Ryall
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Fade Effect on Link Hover?
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edited Feb 24 '15 at 7:05
answered May 15 '11 at 12:37
M...
getMonth in javascript gives previous month
I am using a datepicker which gives a date in the format Sun Jul 7 00:00:00 EDT 2013.
Even though the month says July, if I do a getMonth, it gives me the previous month.
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jQuery ID starts with
...Mark Kahn
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Create a custom View by inflating a layout?
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answered Dec 1 '10 at 20:48
chubbsondubschubbsondubs
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