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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
... performance improvement is negligible. See https://stackoverflow.com/a/766996/1432614
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Case statement with multiple values in each 'when' block
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99
You might take advantage of ruby's "splat" or flattening syntax.
This makes overgrown when cla...
Why is nginx responding to any domain name?
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andreycppandreycpp
63966 silver badges99 bronze badges
3
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Difference between passing array and array pointer into function in C
...orms are identical.
The last sentence in 6.7.5.3/7 was introduced with C99, and basically means that if you have a parameter declaration like
void foo(int a[static 10])
{
...
}
the actual parameter corresponding to a must be an array with at least 10 elements.
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List directory in Go
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Fatih ArslanFatih Arslan
12.9k99 gold badges4747 silver badges5151 bronze badges
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How do I put a border around an Android textview?
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SuragchSuragch
319k199199 gold badges10471047 silver badges10861086 bronze badges
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Is Dvorak typing appropriate for programming? [closed]
... [ = 2597
] = 2586
3 = 2174
Z = 2141
4 = 1657
J = 1599
! = 1595
5 = 1560
# = 1501
6 = 1367
| = 1029
8 = 967
9 = 953
7 = 939
? = 610
` = 367
~ = 59
$ = 47
@ = 7
^ = 6
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How to drop columns by name in a data frame
...dtest)[!names(dtest) %in% drop_vec]) 108.611 119.4830 124.0865 135.4270 1599.577
subset(dtest, select = -c(x, y)) 102.026 111.2680 115.7035 126.2320 1484.174
Code is below :
dtest <- data.frame(x=1:5, y=2:6, z = 3:7)
drop_vec <- c("x", "y")
null_assign...
Why should you remove unnecessary C# using directives?
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Darren KoppDarren Kopp
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How to store standard error in a variable
... number. But be aware, that some shells (from the 1980s) might understand 99>&1 as argument 9 followed by 9>&1 (this is no problem for bash).
Also note that it is not particluar easy to make this FD 3 configurable through a variable. This makes things very unreadable:
: catch-var-f...