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Unable to Cast from Parent Class to Child Class
... what if he wants a dog that's the same eye color/weight/hair pattern/age, etc as the cat that's being held in the mammal object? Essentially copying the common properties.
– FastAl
Jun 18 '10 at 14:02
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Array Size (Length) in C#
...ress the . key it shows you a list of all the methods, properties, events, etc. available on that object. When you highlight a member it gives you a brief description of what it does.
Press F1
If you find a method or property that might do what you want but you're not sure, you can move the curs...
Are HTTP cookies port specific?
...
Also, you can use 127.0.0.1, 127.0.0.2, 127.0.0.3 etc... they all mean localhost.
– David Balažic
Jun 12 '14 at 10:18
3
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How to disable the warning 'define' is not defined using JSHint and RequireJS
...ink Global can be used for custom Global JavaScript e.g angular, $, jQuery etc and predef can be used for implicit global objects like window, document, console etc
– Amitesh
Aug 10 '17 at 5:22
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What is the easiest way to get the current day of the week in Android?
...Current day is Monday
break;
case Calendar.TUESDAY:
// etc.
break;
}
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Rake just one migration
...r_migrations.rb'
=> ["YourMigrations"]
>> YourMigrations.up
=> etc... as the migration runs
>> YourMigration.down
More usefully this could be put into a rake task etc.
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How do you get the list of targets in a makefile?
...a 20), those where you can optionally install it (e.g., Ubuntu 14, with . /etc/bash_completion), and those that don't support it at all (e.g., OSX 10.9)
– mklement0
Oct 13 '14 at 11:23
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What Computer Science concepts should I know? [closed]
...
Basic programming (including recursion, file I/O, formatted output, loops etc)
Object oriented design (including design patterns etc). You should be able to produce sensible OO designs as well as understanding the concepts.
Scripting and regexes.
Data structures -- lists, sets, hashtables, trees, g...
How can I safely create a nested directory?
...rectory due to other factors, such as insufficient permissions, full disk, etc.
One option would be to trap the OSError and examine the embedded error code (see Is there a cross-platform way of getting information from Python’s OSError):
import os, errno
try:
os.makedirs(directory)
except O...
Haskell: Lists, Arrays, Vectors, Sequences
... ---> Prelude.fmap (works for every Functor)
Prelude.foldr/foldl/etc ---> Data.Foldable.foldr/foldl/etc
Prelude.sequence ---> Data.Traversable.sequence
etc
In fact, Data.Traversable defines an API that is more or less universal across any thing "list like".
Still, a...