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Detect if a NumPy array contains at least one non-numeric value?
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Out[5]: True
In [6]: timeit isnan(a.max())
10000 loops, best of 3: 66.3 µs per loop
The treatment of nans in comparisons was not consistent in earlier versions.
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Does have to be in the of an HTML document?
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The linked article has vanished into the link rot æther, so here's the latest available archived version: web.archive.org/web/20150525042412/http://bluerobot.com/web/css/…
– Zachary Murray
Jan 26 '16 at 22:02
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Length of string in bash
...ike to show the difference between string length and byte length:
myvar='Généralités'
chrlen=${#myvar}
oLang=$LANG oLcAll=$LC_ALL
LANG=C LC_ALL=C
bytlen=${#myvar}
LANG=$oLang LC_ALL=$oLcAll
printf "%s is %d char len, but %d bytes len.\n" "${myvar}" $chrlen $bytlen
will render:
Généralités ...
YYYY-MM-DD format date in shell script
... a more compact notation for the accepted answer.
– Håvard Geithus
Nov 16 '15 at 20:42
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What's the best way to send a signal to all members of a process group?
...ll your own children, use pkill -TERM -P ${$}.
– François Beausoleil
Apr 10 '15 at 14:30
3
@Only...
Will strlen be calculated multiple times if used in a loop condition?
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@Prætorian, good point on the zero length string. I didn't consider that case when I wrote my comment. Does C++ evaluate the i > 0 expression on initial loop entry? If it doesn't, then you're right, the zero length case will...
Is it okay to use now?
... edited Oct 5 '11 at 20:55
µBio
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answered May 11 '10 at 20:03
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How to use a class from one C# project with another C# project
...ect.
Change the default name of the file to something like library.py or façade.java, etc.
NOW the code recommendations to import libraries or using namespaces will work as described in the comments above and you don't have to change path statements or change solutions paths and solution names th...
Redis command to get all available keys?
... CLI usage example: redis-cli keys "*"
– XåpplI'-I0llwlg'I -
Nov 28 '16 at 10:11
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C...
Most common C# bitwise operations on enums
...boxing, which accounts for this difference. But the cost is so trivial (0.4µs) that unless you're in a tight loop, I would take the more readable (and less likely buggy) declarative API call any day.
– Drew Noakes
Oct 15 '12 at 23:57
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