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jQuery: checking if the value of a field is null (empty)
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answered Nov 22 '10 at 10:47
GuffaGuffa
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Date.getDay() javascript returns wrong day
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answered Nov 13 '12 at 10:44
Luca RainoneLuca Rainone
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...ort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/html_...
Using jQuery to see if a div has a child with a certain class
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edited May 4 '17 at 16:17
Aamir
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a...
In CMake, how can I test if the compiler is Clang?
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249
A reliable check is to use the CMAKE_<LANG>_COMPILER_ID variables. E.g., to check the C++...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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4 Answers
4
Active
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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
... -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 0 to 4294967295
bigint | 8 bytes -9223372036854775808 to 9223372036854775807 0 to 18446744073709551615
The "unsigned" types are only available in MySQL, and the ...
R - Concatenate two dataframes?
...umn b to data frame b.
Results
> a <- data.frame(a=c(0,1,2), b=c(3,4,5), c=c(6,7,8))
> a
a b c
1 0 3 6
2 1 4 7
3 2 5 8
> b <- data.frame(a=c(9,10,11), c=c(12,13,14))
> b
a c
1 9 12
2 10 13
3 11 14
> b$b <- NA
> b
a c b
1 9 12 NA
2 10 13 NA
3 11 14 NA
> ne...
int value under 10 convert to string two digit number
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245
i.ToString("00")
or
i.ToString("000")
depending on what you want
Look at the MSDN articl...