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Return all enumerables with yield return at once; without looping through
...tion to get validation errors for a card. My question relates to dealing with GetErrors. Both methods have the same return type IEnumerable<ErrorInfo> .
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How to check if a stored procedure exists before creating it
...to be run every time a client executes the "database management" functionality. The script includes creating stored procedures on the client database. Some of these clients might already have the stored procedure upon running the script, and some may not. I need to have the missing stored procedure...
Unit Testing C Code [closed]
I worked on an embedded system this summer written in straight C. It was an existing project that the company I work for had taken over. I have become quite accustomed to writing unit tests in Java using JUnit but was at a loss as to the best way to write unit tests for existing code (which needed...
Any reason to clean up unused imports in Java, other than reducing clutter?
...ny good reason to avoid unused import statements in Java? As I understand it, they are there for the compiler, so lots of unused imports won't have any impacts on the compiled code. Is it just to reduce clutter and to avoid naming conflicts down the line?
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How to “hibernate” a process in Linux by storing its memory to disk and restoring it later?
Is it possible to 'hibernate' a process in linux?
Just like 'hibernate' in laptop, I would to write all the memory used by a process to disk, free up the RAM. And then later on, I can 'resume the process', i.e, reading all the data from memory and put it back to RAM and I can continue with my proces...
Creating range in JavaScript - strange syntax
...y, really? A regular object, containing integer keys, which map to values. It has other special features, for instance the magical length variable, but at it's core, it's a regular key => value map, just like any other object. Let's play with arrays a little, shall we?
var arr = ['a', 'b', 'c'];...
Understanding recursion [closed]
...derstanding recursion at school. Whenever the professor is talking about it, I seem to get it but as soon as I try it on my own it completely blows my brains.
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adb not finding my device / phone (MacOS X)
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Additonal Update : Do not underestimate the value of a good USB cable. Sometimes just swapping cables will help.
Update for newer versions of adb, ~/.android/adb_usb.ini has to be removed.
Executive summary: Add the Vendor ID ...
How can I install a local gem?
If I download a .gem file to a folder in my computer, can I install it later using gem install ?
9 Answers
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How important is the order of columns in indexes?
...umn eliminates more results than restricting on your second column first? It's easier if you picture how the index must be traversed across, column 1, then column 2, etc...you see that lopping off most of the results in the fist pass makes the 2nd step that much faster.
Another case, if you quer...