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Converting camel case to underscore case in ruby
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If you change tr("-","_") to tr("- ","_") (space added to first param), this will also turn spaces into underscores. Also, I don't think you even need to include self., or at least it works for me under Ruby 1.9.3.
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How to get key names from JSON using jq
... replaced spaces with _ which resolved the issue. Thank you very much! but now one more problem. : ( I am getting different orders when i get keys alone and when i get values alone : (
– Ezhilan Mahalingam
Apr 16 '14 at 20:13
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Why is pow(a, d, n) so much faster than a**d % n?
...into the future". Note, though, that the optimization could be extremely difficult or even impossible in general. For constant operands it could be optimized, but in x ** y % n, x could be an object that implements __pow__ and, based on a random number, returns one of several different objects imp...
How to check if a file is a valid image file?
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excellent advice, now i just need to figure out what those numbers are. thanks :)
– Sujoy
May 20 '09 at 18:11
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Mercurial .hgignore for Visual Studio 2008 projects
...re's my standard .hgignore file for use with VS2008 that was originally modified from a Git ignore file:
# Ignore file for Visual Studio 2008
# use glob syntax
syntax: glob
# Ignore Visual Studio 2008 files
*.obj
*.exe
*.pdb
*.user
*.aps
*.pch
*.vspscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
*.bak
*....
How do I find the location of the executable in C? [duplicate]
...me/where/else/foo # create a hard link to foo
$ /some/where/else/foo
Now, the approach above (including, I suspect, /proc/$pid/exe) will give /some/where/else/foo as the real path to the program. And, in fact, it is a real path to the program, just not the one you wanted. Note that this prob...
Can I zip more than two lists together in Scala?
...s of arbitrary size, but the transpose function does exactly what you need if you don't mind getting a list of lists instead.
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Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
What is the equivalent of UI_USER_INTERFACE_IDIOM() in Swift to detect between iPhone and iPad?
17 Answers
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Efficient way to determine number of digits in an integer
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Well, the most efficient way, presuming you know the size of the integer, would be a lookup. Should be faster than the much shorter logarithm based approach. If you don't care about counting the '-', remove the + 1.
// generic solution
template <class T>
int nu...
Why does Go have a “goto” statement
... the math/gamma.go file, the goto statement is used:
for x < 0 {
if x > -1e-09 {
goto small
}
z = z / x
x = x + 1
}
for x < 2 {
if x < 1e-09 {
goto small
}
z = z / x
x = x + 1
}
if x == 2 {
return z
}
x = x - 2
p = (((((x...