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Rails: call another controller action from a controller
...e
To just render the new action :
redirect_to your_controller_action_url and return
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In Python, using argparse, allow only positive integers
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type would be the recommended option to handle conditions/checks, as in Yuushi's answer.
In your specific case, you can also use the choices parameter if your upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range ...
How do you cast a List of supertypes to a List of subtypes?
...er to another. However, you can cast through an intermediate wildcard type and it will be allowed (since you can cast to and from wildcard types, just with an unchecked warning):
List<TestB> variable = (List<TestB>)(List<?>) collectionOfListA;
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How to find the operating system version using JavaScript?
How can I find the OS name and OS version using JavaScript?
13 Answers
13
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Is there a naming convention for Django apps
...lowercase names, although the use of underscores is
discouraged.
So, 1 and 3 are both valid, but 3 would be the recommended approach.
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How to create a readonly textbox in ASP.NET MVC3 Razor
...mplates. Just call .EditorFor.
While @Shark's solution works correctly, and it is simple and useful, my solution (that I use always) is this one: Create an editor-template that can handles readonly attribute:
Create a folder named EditorTemplates in ~/Views/Shared/
Create a razor PartialView na...
How to uncommit my last commit in Git [duplicate]
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If you aren't totally sure what you mean by "uncommit" and don't know if you want to use git reset, please see "Revert to a previous Git commit".
If you're trying to understand git reset better, please see "Can you explain what "git reset" does in plain English?".
If you know...
How to convert a Binary String to a base 10 integer in Java
...s 1 is been multiply by 2, if i am not mistaken in bynary you start with 1 and multiply that value by 2 then grab the result and multiply that one by 2 that will be your 3 place and so on
– Christopher Cabezudo Rodriguez
Jun 23 '15 at 21:00
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How to not wrap contents of a div?
...he buttons are too long, they wrap – one button stays on the first line, and the next button follows underneath it instead of adjacent to it.
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What is x after “x = x++”?
...gning the old value of x back into itself.
x = x++;
x++ increments x and returns its old value.
x = assigns the old value back to itself.
So in the end, x gets assigned back to its initial value.
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