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Count the number of occurrences of a character in a string in Javascript
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It suffices to set the start index = -2, but thanks a lot @Augustus
– Lorenz Lo Sauer
Nov 24 '13 at 20:10
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How does PHP 'foreach' actually work?
... into a per-foreach HashPointer. After the loop body runs, the IAP will be set back to this element if it still exists. If however the element has been removed, we'll just use wherever the IAP is currently at. This scheme mostly-kinda-sort of works, but there's a lot of weird behavior you can get ou...
What should I do when 'svn cleanup' fails?
I have a lot of changes in a working folder, and something screwed up trying to do an update.
30 Answers
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How to go to a specific file in Chrome Developer Tools?
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psql: FATAL: database “” does not exist
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I needed to do this in Windows. Set the new pg username to the Linux un. Fixed.
– RichieRich
May 7 '18 at 11:19
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JNI converting jstring to char *
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How can I get pg_dump to authenticate properly
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If I configure my Postgres inside Docker, will this setup work for connections coming my localhost?
– Jack Chi
Sep 4 at 22:52
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Reshaping data.frame from wide to long format
...cify the name of the variable-column:
library(data.table)
long <- melt(setDT(wide), id.vars = c("Code","Country"), variable.name = "year")
which gives:
> long
Code Country year value
1: AFG Afghanistan 1950 20,249
2: ALB Albania 1950 8,097
3: AFG Afghanistan 1951 21,35...
How to get first character of a string in SQL?
...VARCHAR(20) = 'This is some string'
DECLARE @Result NVARCHAR(20)
Either
SET @Result = SUBSTRING(@SomeString, 2, 3)
SELECT @Result
@Result = his
or
SET @Result = LEFT(@SomeString, 6)
SELECT @Result
@Result = This i
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How to resolve “local edit, incoming delete upon update” message
...you deleted but remember, If you are working on any type of project with a set project file (like iOS), reverting the file will add it to your system folder structure but not your project file structure. additional steps may be required if you are in this case
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