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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...
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 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...
How do SO_REUSEADDR and SO_REUSEPORT differ?
...implementation of a specific operating system, which may not even be explicitly mentioned in the text.
2 Answers
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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...
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 to disable HTML links
...a link (in a portable way). You can use one of these techniques (each one with its own benefits and disadvantages).
CSS way
This should be the right way (but see later) to do it when most of browsers will support it:
a.disabled {
pointer-events: none;
}
It's what, for example, Bootstrap 3.x...
What is the copy-and-swap idiom?
What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used?
5 An...
What is the proper REST response code for a valid request but an empty data?
For example you run a GET request for users/9 but there is no user with id #9.
Which is the best response code?
23 Answer...