大约有 39,400 项符合查询结果（耗时：0.0727秒） [XML]
Check to see if a string is serialized?
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answered Feb 14 '11 at 16:32
Brandon WamboldtBrandon Wamboldt
14.9k1111 gold badges4949 silver badges8282 bronze badges
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Check whether an input string contains a number in javascript
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112
You can do this using javascript. No need for Jquery or Regex
function isNumeric(n) {
retur...
Detect when browser receives file download
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edited Feb 11 '17 at 17:58
David Passmore
5,87144 gold badges4141 silver badges6868 bronze badges
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Can Python test the membership of multiple values in a list?
...mallsubset = set(range(5))
>>> %timeit smallset >= smallsubset
110 ns ± 0.702 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
>>> %timeit all(x in smallset for x in smallsubset)
951 ns ± 11.5 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
This l...
Tool for adding license headers to source files? [closed]
...ursively :-(
– knocte
Feb 21 '18 at 11:11
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@knocte Replace the for-loop with this for i in $(fin...
How to force a WPF binding to refresh?
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Community♦
111 silver badge
answered Apr 15 '11 at 11:50
H.B.H.B.
133k2525 gold badges274...
Breaking/exit nested for in vb.net
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edited Mar 15 '11 at 13:55
answered Mar 15 '11 at 13:39
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How to use SSH to run a local shell script on a remote machine?
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is there an advantage to using the -s option? this man page leads me to believe that it will process standard input when it's done process...
How do I obtain the frequencies of each value in an FFT?
... 86.1 Hz
3: 3 * 44100 / 1024 = 129.2 Hz
4: ...
5: ...
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511: 511 * 44100 / 1024 = 22006.9 Hz
Note that for a real input signal (imaginary parts all zero) the second half of the FFT (bins from N / 2 + 1 to N - 1) contain no useful additional information (they have complex conjugat...