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Calculate total seconds in PHP DateInterval
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BenBen
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11
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How to read the database table name of a Model instance?
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answered Oct 24 '08 at 11:38
BerBer
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Summarizing multiple columns with dplyr? [duplicate]
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#> 1 1 3.08 2.98 2.98 2.91
#> 2 2 3.03 3.04 2.97 2.87
#> 3 3 2.85 2.95 2.95 3.06
If you want to summarize only certain columns, use summarise_at or summarise_if functions.
Alternatively, the purrrlyr package provides the same functionality:
library(purr...
NSString: isEqual vs. isEqualToString
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answered Aug 18 '09 at 10:41
AbizernAbizern
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Rails render partial with block
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edited Mar 4 '15 at 12:14
Pez Cuckow
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How do I delete/remove a shell function?
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274
unset -f z
Will unset the function named z. A couple people have answered with:
unset z
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How to break out of a loop in Bash?
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194
It's not that different in bash.
done=0
while : ; do
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if [ "$done" -ne 0 ]; then
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How do I check out a specific version of a submodule using 'git submodule'?
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answered Jun 6 '12 at 14:34
joemallerjoemaller
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How to make inline functions in C#
...mparison<string> compare3 = compare1; // this one only works from C# 4.0 onwards
These can be invoked directly as if they were regular methods:
int x = add(23, 17); // x == 40
print(x); // outputs 40
helloWorld(x); // helloWorld has one int parameter declared: Action<int>
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