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Is there a way to access method arguments in Ruby?
New to Ruby and ROR and loving it each day, so here is my question since I have not idea how to google it (and I have tried :) )
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Understanding slice notation
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It's pretty simple really:
a[start:stop] # items start through stop-1
a[start:] # items start through the rest of the array
a[:stop] # items from the beginning through stop-1
a[:] # a copy of the whole array
There is also the step value,...
__lt__ instead of __cmp__
Python 2.x has two ways to overload comparison operators, __cmp__ or the "rich comparison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so?
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How can I remove a commit on GitHub? [duplicate]
I "accidentally" pushed a commit to GitHub.
21 Answers
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When to use an assertion and when to use an exception
Most of the time I will use an exception to check for a condition in my code, I wonder when it is an appropriate time to use an assertion?
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How to speed up insertion performance in PostgreSQL
...abase in the PostgreSQL manual, depesz's excellent-as-usual article on the topic, and this SO question.
(Note that this answer is about bulk-loading data into an existing DB or to create a new one. If you're interested DB restore performance with pg_restore or psql execution of pg_dump output, much...
How can I swap positions of two open files (in splits) in vim?
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A bit late to the post, but came across this searching for something else. I wrote two functions awhile back to mark a window and then swap buffers between windows. This seems to be what you're asking for.
Just slap these in your ....
What is a pre-revprop-change hook in SVN, and how do I create it?
I wanted to edit a log comment in the repository browser and received an error message that no pre-revprop-change hook exists for the repository. Besides having a scary name, what is a pre-revprop-change hook, and how do I create it?
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When to use MongoDB or other document oriented database systems? [closed]
We offer a platform for video- and audio-clips, photos and vector-grafics. We started with MySQL as the database backend and recently included MongoDB for storing all meta-information of the files, because MongoDB better fits the requirements. For example: photos may have Exif information, video...
What is the intent of the methods getItem and getItemId in the Android class BaseAdapter?
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I see these methods as a cleaner approach to accessing my list's data. Instead of directly accessing my adapter object via something like myListData.get(position) i can simply call the adapter like adapter.get(position).
The same goes for getItemId. Usually I would ...