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How to make a great R reproducible example
... teaching, sending a bug report or searching for guidance on mailing lists and here on Stack Overflow, a reproducible example is often asked and always helpful.
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Swapping column values in MySQL
I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
Any reason not to use '+' to concatenate two strings?
...e Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the right way t...
How to pip install a package with min and max version range?
...tall a package with both a minimum version ( pip install package>=0.2 ) and a maximum version which should never be installed (theoretical api: pip install package<0.3 ).
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Javascript and regex: split string and keep the separator
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I don't understand why everybody is using /g
– Sarsaparilla
Jan 11 '17 at 18:22
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How do I split a string so I can access item x?
...ourceText)) SET @w_Length = DATALENGTH( RTRIM( LTRIM( @p_SourceText))) and not SET @p_SourceText = RTRIM( LTRIM( @p_SourceText)) SET @w_Length = DATALENGTH( @p_SourceText)?
– Beth
Sep 29 '10 at 15:13
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Understanding the Event Loop
I am thinking about it and this is what I came up with:
3 Answers
3
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Generate random int value from 3 to 6
Is it possible in Microsoft SQL Server generate random int value from Min to Max (3-9 example, 15-99 e.t.c)
10 Answers
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Accessing localhost (xampp) from another computer over LAN network - how to?
...network at home. I have all my files on my desktop computer (192.168.1.56) and want to access localhost over there from another computer (192.168.1.2).
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Wolfram's Rule 34 in XKCD [closed]
...1110. The digit of least significance is zero. This means that if the cell and its neighbors match rule 0 above, it turns white/negative/0/false/whatever. The second least significant digit is one, so if the cell and its neighbors match rule 1 above, it turns black/positive/1/true/whatever`, etc. et...