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Constantly print Subprocess output while process is running
...he process pauses for a bit without writing anything to stdout there is no more input to read. You will need a loop to check whether or not the process has finished. I tried this using subprocess32 on python 2.7
– Har
Dec 26 '15 at 19:05
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How to check if an object is a list or tuple (but not string)?
...otic things like array which act pretty much like lists, and probably lots more I've forgotten.
– Nick Craig-Wood
Dec 4 '09 at 6:57
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Check if a Bash array contains a value
...over array elements and concatenates them into a string, it's probably not more efficient than the looping solutions proposed, but it's more readable.
if [[ " ${array[@]} " =~ " ${value} " ]]; then
# whatever you want to do when array contains value
fi
if [[ ! " ${array[@]} " =~ " ${value} " ]...
Ways to save enums in database
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We never store enumerations as numerical ordinal values anymore; it makes debugging and support way too difficult. We store the actual enumeration value converted to string:
public enum Suit { Spade, Heart, Diamond, Club }
Suit theSuit = Suit.Heart;
szQuery = "INSERT INTO Customer...
How to check if a specified key exists in a given S3 bucket using Java
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Use the jets3t library. Its a lot more easier and robust than the AWS sdk. Using this library you can call, s3service.getObjectDetails(). This will check and retrieve only the details of the object (not the contents) of the object. It will throw a 404 if the ...
Software Design vs. Software Architecture [closed]
...? What design patterns can be used?
So in short, Software architecture is more about the design of the entire system, while software design emphasizes on module / component / class level.
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How can I reset or revert a file to a specific revision?
...567 -- file1/to/restore file2/to/restore
The git checkout man page gives more information.
If you want to revert to the commit before c5f567, append ~1 (where 1 is the number of commits you want to go back, it can be anything):
git checkout c5f567~1 -- file1/to/restore file2/to/restore
As a si...
How to validate an email address in JavaScript
...Some simple cases it doesn't match a\@b@c.com, a(b)@c.com. See the RFC for more. Here's a regex that won't reject any valid addresses [^@]+@[^@]+\.[^@]+ and protects against common errors.
– Vroo
Oct 26 '12 at 6:32
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Android 4.3 Bluetooth Low Energy unstable
...ant implementation hints
(Perhaps some of those hints aren't necessary anymore due to Android OS updates.)
Some devices like Nexus 4 with Android 4.3 take 45+ seconds to connect using an existing gatt instance. Work around: Always close gatt instances on disconnect and create a fresh instance of ...
How to repeat a string a variable number of times in C++?
...return os.str();
}
Depending on the implementation, this may be slightly more efficient than simply concatenating the string n times.
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