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How to find duplicates in 2 columns not 1
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great thanks, does the order that you group by matter?
– Andrew
Jan 27 '17 at 20:56
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sh...
How does Haskell printf work?
...(). For this, we have the instance
instance PrintfType (IO ())
Next, in order to support a variable number of arguments, we need to use recursion at the instance level. In particular we need an instance so that if r is a PrintfType, a function type x -> r is also a PrintfType.
-- instance Pri...
how to make a specific text on TextView BOLD
...related to strings should consider translations. Words in sentences can be ordered and structured completely differently in some languages so appending like this isn't always applicable in certain situations. Also not ideal for stuff like quantity strings in XML.
– Edward van R...
How to apply a function to two columns of Pandas dataframe
...ames in the function instead of indexes then you don't need to worry about order changing, or get the index by name e.g. see stackoverflow.com/questions/13021654/…
– Davos
Mar 22 '18 at 7:19
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How to convert OutputStream to InputStream?
...original OutputStream to the PipedOutputStream
// note that in order for the below method to work, you need
// to ensure that the data has finished writing to the
// ByteArrayOutputStream
originalByteArrayOutputStream.writeTo(out);
}
ca...
How can I use vim to convert my file to utf8?
...ing=utf8
:w myfilename
Also note that UTF8 files often begin with a Byte Order Mark (BOM) which indicates endianness. The BOM is optional but some programs use it exclusively to determine the file encoding. Under certain conditions Vim will write the BOM but sometimes it won't. To explicitly se...
Best way to include CSS? Why use @import?
...ll need understand how to look up the dependency graph of the CSS files in order to push back all the files at once. It's not so simple. Here's a guide on how to set up an HTTP/2 server for that: smashingmagazine.com/2017/04/guide-http2-server-push.
– trusktr
A...
Guards vs. if-then-else vs. cases in Haskell
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This is just a matter of ordering but I think its very readable and has the same structure as guards.
nthElement :: [a] -> Int -> Maybe a
nthElement [] a = Nothing
nthElement (x:xs) a = if a < 1 then Nothing else
if ...
Conceptually, how does replay work in a game?
...sequence as the recorded actions are supposed to happen have a replay.
In order to get random events to re-occur exactly the same, use seeded pseudo-random numbers and save the seed in the replay file.
So long as you use the same algorithm to generate the random numbers from the seed, you can recr...
Can you “ignore” a file in Perforce?
...g in '.tmp'
Lines in the Ignored field may appear in any order. Ignored
names are inherited by child stream client views.
This essentially does what @raven's answer specifies, but is done easier with streams, as it automatically propagates to every work-space us...