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How can we programmatically detect which iOS version is device running on? [duplicate]
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edited Mar 6 '18 at 13:24
community wiki
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In git how is fetch different than pull and how is merge different than rebase?
... LarsH
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answered Feb 15 '13 at 13:14
pestrellapestrella
8,95833 go...
Specified argument was out of the range of valid values. Parameter name: site
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530
If using IIS:
control panel
Programs
open or close windows features
tick internet informatio...
Reading and writing binary file
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3
AFAIK, binary files sometimes contain unreadable char, in the fact, they are not char at all. Is this code safe for reading non-text base fi...
'git status' shows changed files, but 'git diff' doesn't
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13 Answers
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How to clear the cache of nginx?
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Chris Stryczynski
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answered Oct 29 '12 at 6:21
Deepan ChakravarthyDeepan Chakravar...
Format date and time in a Windows batch script
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33 Answers
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How to write a large buffer into a binary file in C++, fast?
...g), pFile);
}
fclose(pFile);
return 0;
}
I just timed 8GB in 36sec, which is about 220MB/s and I think that maxes out my SSD. Also worth to note, the code in the question used one core 100%, whereas this code only uses 2-5%.
Thanks a lot to everyone.
Update: 5 years have passed it's ...
Best practices/performance: mixing StringBuilder.append with String.concat
...(s2)
Multiple strings with +
Worth to note that:
String s = s1 + s2 + s3 + ... +sN
is translated to:
String s = new StringBuilder(s1).append(s2).append(s3)...apend(sN).toString();
concat()
String s = s1.concat(s2);
String creates char[] array that can fit both s1 and s2. Copies s1 and s2...
cartesian product in pandas
...import DataFrame, merge
df1 = DataFrame({'key':[1,1], 'col1':[1,2],'col2':[3,4]})
df2 = DataFrame({'key':[1,1], 'col3':[5,6]})
merge(df1, df2,on='key')[['col1', 'col2', 'col3']]
Output:
col1 col2 col3
0 1 3 5
1 1 3 6
2 2 4 5
3 2 4 6
See here...