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Check if all values of array are equal
...ues are equal. What's the fastest way to do this? Should I loop through it and just compare values?
31 Answers
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Finding the path of the program that will execute from the command line in Windows
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Use the where command. The first result in the list is the one that will execute.
C:\> where notepad
C:\Windows\System32\notepad.exe
C:\Windows\notepad.exe
According to this blog post, where.exe is included with Windows Server 2003 and...
IList vs IEnumerable for Collections on Entities
...ant to surface the Lines property as only an IEnumerable<OrderLine>, and provide Add(OrderLine) and Remove(OrderLine) methods which can handle that validation.
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split string in to 2 based on last occurrence of a separator
...ther: str.rpartition(sep) Split the string at the last occurrence of sep, and return a 3-tuple containing the part before the separator, the separator itself, and the part after the separator. If the separator is not found, return a 3-tuple containing two empty strings, followed by the string itsel...
“Automatic” vs “Automatic (Delayed start)”
...tically starting a Windows service on Windows startup. One is Automatic , and the other is Automatic (Delayed start) . What is the difference between these two in detail?
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Scatterplot with too many points
...+ geom_point(alpha = 0.3)
Another convenient way to deal with this is (and probably more appropriate for the number of points you have) is hexagonal binning:
ggplot(df,aes(x=x,y=y)) + stat_binhex()
And there is also regular old rectangular binning (image omitted), which is more like your tr...
Adding command line options to CMake
I'm building a large library using CMake, and I would like users to be able to selectively enable/disable certain parts of my build process.
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Select multiple columns in data.table by their numeric indices
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No problem. Compare also dt[,"a"] and dt[,"a", with=FALSE] to see what a helpful option it really is.
– Josh O'Brien
Nov 14 '12 at 17:41
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List all commits (across all branches) for a given file
...or the gitk GUI. Can I mark both correct?
– Saurabh Nanda
Sep 20 '11 at 14:20
@Saurabh Nanda: Mark the one you think i...
Can you have if-then-else logic in SQL? [duplicate]
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The CASE statement is the closest to an IF statement in SQL, and is supported on all versions of SQL Server:
SELECT CASE <variable>
WHEN <value> THEN <returnvalue>
WHEN <othervalue> THEN <returnthis>
ELSE <retur...