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C# vs Java Enum (for those new to C#)
...c PlanetAttr GetAttr(Planet p)
{
return (PlanetAttr)Attribute.GetCustomAttribute(ForValue(p), typeof(PlanetAttr));
}
private static MemberInfo ForValue(Planet p)
{
return typeof(Planet).GetField(Enum.GetName(typeof(Planet), p));
}
}
public enum Planet
{
[Pl...
Proper practice for subclassing UIView?
...this answer you may think of calling initWithFrame: from initWithCoder: in order to setup the frame.
Finally, if you load your UIView from a nib (or a storyboard), you also have the awakeFromNib opportunity to perform custom frame and layout initializations, since when awakeFromNib is called it's g...
Gradients in Internet Explorer 9
...he gradient, or make it more sophisticated (radial gradients, transparency etc.) but this is great for those simple (vertical) linear gradients.
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How to correctly implement custom iterators and const_iterators?
...
Choose type of iterator which fits your container: input, output, forward etc.
Use base iterator classes from standard library. For example, std::iterator with random_access_iterator_tag.These base classes define all type definitions required by STL and do other work.
To avoid code duplication iter...
Python argparse mutual exclusive group
...y of potential conflicts (a can't occur with b or c, b can't occur with a, etc), and then raises an error if a conflict arises.
Without that argparse patch, I think your best choice is to test the namespace produced by parse_args yourself (e.g. if both a and b have nondefault values), and raise you...
Understanding the map function
...ol things map() can do.
map() can take multiple iterables (lists, strings, etc.) and pass an element from each iterable to a function as an argument.
We have three lists:
list_one = [1, 2, 3, 4, 5]
list_two = [11, 12, 13, 14, 15]
list_three = [21, 22, 23, 24, 25]
map() can make you a new list th...
What does the question mark and the colon (?: ternary operator) mean in objective-c?
...operators we usually use when programming (*,+,-,^, |,||, &, >>, etc).
– tomacco
Feb 5 '18 at 18:07
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git cherry-pick says “…38c74d is a merge but no -m option was given”
...entropic 1 is the "first parent", 2 is the "second parent", and so on. The order is the one in which they're listed in the commit (as viewed by git show and the like).
– Borealid
Mar 21 '12 at 15:20
...
Is it bad to have my virtualenv directory inside my git repository?
..., offering a -q (quiet) option, using python when python3 isn't available, etc.
This can then be sourced from any current working directory and will properly activate, first setting up the virtual environment if necessary. My top-level test script usually has code along these lines so that it can b...
Is there a way to define a min and max value for EditText in Android?
... in problem bu it accept all values less than 20 like 0 , 1, 2 , ------ 19 etc
– EminenT
Jun 13 '15 at 5:52
did you fi...