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How to create a GUID/UUID in Python
...d.html
Python 3:
https://docs.python.org/3/library/uuid.html
Example (working on 2 and 3):
>>> import uuid
>>> uuid.uuid4()
UUID('bd65600d-8669-4903-8a14-af88203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93...
How can I get name of element with jQuery?
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You should use attr('name') like this
$('#yourid').attr('name')
you should use an id selector, if you use a class selector you encounter problems because a collection is returned
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How to remove items from a list while iterating?
...ort filterfalse
somelist[:] = filterfalse(determine, somelist)
For the sake of clarity and for those who find the use of the [:] notation hackish or fuzzy, here's a more explicit alternative. Theoretically, it should perform the same with regards to space and time than the one-liners above.
temp ...
Check if a string is a date value
What is an easy way to check if a value is a valid date, any known date format allowed.
20 Answers
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What uses are there for “placement new”?
Has anyone here ever used C++'s "placement new"? If so, what for? It looks to me like it would only be useful on memory-mapped hardware.
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How to stop tracking and ignore changes to a file in Git?
I have cloned a project that includes some .csproj files. I don't need/like my local csproj files being tracked by Git (or being brought up when creating a patch), but clearly they are needed in the project.
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Specifying colClasses in the read.csv
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George DontasGeorge Dontas
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What does iterator->second mean?
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I'm sure you know that a std::vector<X> stores a whole bunch of X objects, right? But if you have a std::map<X, Y>, what it actually stores is a whole bunch of std::pair<const X, Y>s. That's exactly what a map is - it pa...
.NET Process.Start default directory?
...f a Java application from inside of a C# .NET console application. It works fine for the case where the Java application doesn't care what the "default" directory is, but fails for a Java application that only searches the current directory for support files.
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Why does Java's hashCode() in String use 31 as a multiplier?
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According to Joshua Bloch's Effective Java (a book that can't be recommended enough, and which I bought thanks to continual mentions on stackoverflow):
The value 31 was chosen because it is an odd prime. If it were even and the multiplication overflowed, information wou...