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What is the difference between '/' and '//' when used for division?
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smci
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answered Oct 8 '08 at 17:21
Eli CourtwrightEli ...
Understanding dict.copy() - shallow or deep?
...gt;>> a, b
({1: [1, 2, 3]}, {1: [1, 2, 3]})
>>> a[1].append(4)
>>> a, b
({1: [1, 2, 3, 4]}, {1: [1, 2, 3, 4]})
In contrast, a deep copy will copy all contents by value.
>>> import copy
>>> c = copy.deepcopy(a)
>>> a, c
({1: [1, 2, 3, 4]}, {1: [1,...
Array to Hash Ruby
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a = ["item 1", "item 2", "item 3", "item 4"]
h = Hash[*a] # => { "item 1" => "item 2", "item 3" => "item 4" }
That's it. The * is called the splat operator.
One caveat per @Mike Lewis (in the comments): "Be very careful with this. Ruby expands splats on ...
Undefined reference to static constexpr char[]
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answered Nov 4 '11 at 23:22
Kerrek SBKerrek SB
415k7676 gold badges781781 silver badges10021002 bronze badges
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Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?
I still have Snow Leopard. I have Xcode 4.2 for iOS development. This morning I upgraded my iPhone and iPad to iOS 5.1.
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App Inventor 2 KIO4_Gradient 拓展：布局中的颜色渐变 · App Inventor 2 中文网
... App Inventor 2 KIO4_Gradient 拓展：布局中的颜色渐变
KIO4_Gradient 拓展：布局中的颜色渐变
使用案例
创建圆角渐变标题栏
方法
属性
拓展下...
Browse the files created on a device by the iOS application I'm developing, on workstation?
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Abhishek Bedi
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answered May 25 '11 at 8:35
Amy WorrallAmy Worral...
How do I find the .NET version?
... or else if you have the .NET framework SDK, then the SDK Command prompt.
4. wmic product get description | findstr /C:".NET Framework"
5. dir /b /ad /o-n %systemroot%\Microsoft.NET\Framework\v?.*
The last command (5) will list out all the versions (except 4.5) of .NET installed, latest first. Yo...
How do I iterate over a range of numbers defined by variables in Bash?
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edited Apr 23 '16 at 0:41
answered Oct 4 '08 at 1:41
Jia...
Reimport a module in python while interactive
... new version without leaving the Python interpreter.
If running Python 3.4 and up, do import importlib, then do importlib.reload(nameOfModule).
Don't forget the caveats of using this method:
When a module is reloaded, its dictionary (containing the module’s global variables) is retained. Red...