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Appending a line to a file only if it does not already exist
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anatoly techtonik
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answered Aug 24 '10 at 13:53
drAlberTdrAlber...
How do you build a Singleton in Dart?
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Thanks to Dart's factory constructors, it's easy to build a singleton:
class Singleton {
st...
Does Swift support reflection?
...From mchambers gist, here:
https://gist.github.com/mchambers/fb9da554898dae3e54f2
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Iterating Over Dictionary Key Values Corresponding to List in Python
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edited Aug 31 '18 at 3:36
ostergaard
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how to check if List element contains an item with a Particular Property Value
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– Haithem KAROUI
Sep 17 '14 at 13:36
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How can I run PowerShell with the .NET 4 runtime?
...framework /v OnlyUseLatestCLR /t REG_DWORD /d 1
reg add hklm\software\wow6432node\microsoft\.netframework /v OnlyUseLatestCLR /t REG_DWORD /d 1
To update just the ISE to use .NET 4.0, you can change the configuration ($psHome\powershell_ise.exe.config) file to have a chunk like this:
<?xml ver...
How to remove last n characters from every element in the R vector
...rame("data"=char_array,"data2"=1:4)
a$data = substr(a$data,1,nchar(a$data)-3)
a should now contain:
data data2
1 foo_ 1
2 bar_ 2
3 ap 3
4 b 4
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Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a
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Raedwald
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answered Oct 21 '08 at 23:27
Bill KBill...
How can I check for Python version in a program that uses new language features?
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edited May 31 '17 at 15:35
martineau
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How do I change tab size in Vim?
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Always keep 'tabstop' at 8, set 'softtabstop' and 'shiftwidth' to 4 (or 3 or whatever you prefer) and use 'noexpandtab'. Then Vim will use a mix of tabs and spaces, but typing and will behave like a tab appears every 4 (or 3) characters.
Set 'tabstop' and 'shiftwidth' to whatever you prefer a...