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Is there any Rails function to check if a partial exists?
..., true) in this example.
– Jenn
Jun 12 '12 at 17:30
2
This is the current (rails >= 3.2) way t...
Guava equivalent for IOUtils.toString(InputStream)
...bout closing it)
– Blankman
Apr 22 '12 at 19:43
CharStreams.toString(InputSupplier) is now deprecated. I created a Cha...
What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
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Please also note that the ConcurrentHashMap does not allow null keys or values. So they are NOT equal alternatives of a synchronized map.
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MongoDB: Is it possible to make a case-insensitive query?
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How to remove Firefox's dotted outline on BUTTONS as well as links?
...h Crozier
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answered Oct 13 '08 at 22:46
user27656user27656
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Kill a postgresql session/connection
... Frank HeikensFrank Heikens
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Redirect stdout to a file in Python?
...Filip Młynarski
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answered Jan 13 '11 at 0:53
moinudinmoinudin
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An explicit value for the identity column in table can only be specified when a column list is used
...ement.asp)
– Aleksandr Khomenko
Apr 12 '16 at 8:24
2
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I can’t find the Android keytool
...t in the JRE... Thanks
– Nick.T
Feb 12 '13 at 14:52
4
A useful trick is to save the output to a f...
Remove rows with all or some NAs (missing values) in data.frame
...l mmus rnor cfam
2 ENSG00000199674 0 2 2 2 2
6 ENSG00000221312 0 1 2 3 2
na.omit is nicer for just removing all NA's. complete.cases allows partial selection by including only certain columns of the dataframe:
> final[complete.cases(final[ , 5:6]),]
g...