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Boolean operators && and ||
According to the R language definition , the difference between & and && (correspondingly | and || ) is that the former is vectorized while the latter is not.
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Print string and variable contents on the same line in R
Is there a way to print text and variable contents on the same line? For example,
8 Answers
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Managing relationships in Laravel, adhering to the repository pattern
...l's book on good design patterns in Laravel I found myself creating repositories for every table on the application.
4 Answ...
How do you determine the ideal buffer size when using FileInputStream?
...w big should I make the buffer used to read from the files to maximize performance?
9 Answers
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Check if something is (not) in a list in Python
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The bug is probably somewhere else in your code, because it should work fine:
>>> 3 not in [2, 3, 4]
False
>>> 3 not in [4, 5, 6]
True
Or with tuples:
>>> (2, 3) not in [(2, 3), (5, 6), (9, 1)]
False
>>> (2, 3) not in [(2, 7), (7, 3), "hi"]
True
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Why doesn't C have unsigned floats?
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Why C++ doesn't have support for unsigned floats is because there is no equivalent machine code operations for the CPU to execute. So it would be very inefficient to support it.
If C++ did support it, then you would be sometimes using an unsigned...
How to compare if two structs, slices or maps are equal?
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You can use reflect.DeepEqual, or you can implement your own function (which performance wise would be better than using reflection):
http://play.golang.org/p/CPdfsYGNy_
m1 := map[string]int{
"a":1,
"b":2,
}
m2 := map[string]int{
"a":1,...
Difference between Grunt, NPM and Bower ( package.json vs bower.json )
...ve a bit of experience with rails, so I'm familiar with the idea of files for listing dependencies (such as bundler Gemfile)
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How to undo 'git reset'?
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Short answer:
git reset 'HEAD@{1}'
Long answer:
Git keeps a log of all ref updates (e.g., checkout, reset, commit, merge). You can view it by typing:
git reflog
Somewhere in this list is the commit that you lost. Let's s...
What's the strangest corner case you've seen in C# or .NET? [closed]
I collect a few corner cases and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible:
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