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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
Ruby has two different exceptions mechanisms: Throw/Catch and Raise/Rescue.
3 Answers
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Scoping in Python 'for' loops
I'm not asking about Python's scoping rules; I understand generally how scoping works in Python for loops. My question is why the design decisions were made in this way. For example (no pun intended):
...
Android Fragments and animation
...Fragment Transaction.
Within each Fragment Transaction you can specify in and out animations that will be used for show and hide respectively (or both when replace is used).
The following code shows how you would replace a fragment by sliding out one fragment and sliding the other one in it's pla...
Android Task Affinity Explanation
...y used for? I have gone through the documentation but I couldn't understand much.
3 Answers
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How to set up a git project to use an external repo submodule?
... project as a submodule.
Submodules are really, really easy to reference and use. Assuming you already have MyWebApp set up as a repo, from terminal issue these commands:
cd MyWebApp
git submodule add git://github.com/jquery/jquery.git externals/jquery
This will create a directory named externa...
How to make an immutable object in Python?
...butes can be accessed via [0] etc., but at least it's considerably shorter and provides the additional advantage of being compatible with pickle and copy.
namedtuple creates a type similar to what I described in this answer, i.e. derived from tuple and using __slots__. It is available in Python 2....
arrow operator (->) in function heading
...declaration:
return-type identifier ( argument-declarations... )
and
auto identifier ( argument-declarations... ) -> return_type
They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets...
Get dimension from XML and set text size in runtime
...d May 23 '13 at 15:31
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What are Flask Blueprints, exactly?
I have read the official Flask documentation on Blueprints and even one or two blog posts on using them.
4 Answers
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How can I do a case insensitive string comparison?
... method to test whether two strings are equal.
Use the String.Compare and String.CompareTo methods to sort strings, not to check for equality.
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