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Create a GUID in Java

...iePet Eh, if you're that paranoid, and you got access to the list of the already-used IDs when creating a new one, you just generate new ones in a while until you got one that isn't inside your list :p – Nyerguds Jul 5 '16 at 13:11 ...
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Creating an R dataframe row-by-row

... use tend to multiply storage by 2 when extending allocation. I thought I read in R Internals that there is a memory structure where the storage increments by 20%. Either way, growth operations occur with logarithmic frequency relative to the total number of elements appended. On an amortized bas...
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How to make a class JSON serializable

... @user5359531 you can use obj = jsonpickle.decode(file.read()) and file.write(jsonpickle.encode(obj)). – Kilian Batzner Jan 2 '17 at 8:04 1 ...
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if A vs if A is not None:

... what you really want to check. These things can be hard to debug since is reads like prose that we often just skim over it. share | improve this answer | follow ...
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Can anybody push to my project on github?

...esh the page, I can see the changes are uploaded(for example, if I wrote a readme.txt and push it to the remote repo, where such a readme.txt did not exist, after push and refresh the page, it appears). ...
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Python Image Library fails with message “decoder JPEG not available” - PIL

...d libjpeg installed systemwide: libpng & libjpeg for OSX Because I already had PIL installed (via pip on a virtualenv), I ran: pip uninstall PIL pip install PIL --upgrade This resolved the decoder JPEG not available error for me. UPDATE (4/24/14): Newer versions of pip require additional ...
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Usage of forceLayout(), requestLayout() and invalidate()

...ve no effect since it does not trigger a requestLayout() up the view tree. Read this Q&A for a more detailed description of forceLayout(). Further study Creating a View Class: Add Properties and Events (helpful docs) View documentation View source code ...
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Java “user.dir” property - what exactly does it mean?

... Already read it before posting. But "User working directory" is not a best explanation, hope you agree. – johnny-b-goode Apr 26 '13 at 14:53 ...
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What does “%” (percent) do in PowerShell?

...ect, I'd advise not using the "%" symbol - it makes it harder for folks to read/maintain your code - especially people new to PS. Let's face it, the more people that pick up PS, the better. – Simon Catlin Apr 3 '14 at 20:17 ...
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What is the difference between Debug and Release in Visual Studio?

... Also, apparently, Debug mode creates a lot of extra threads to help with debugging. These remain active throughout the life of the process, regardless of whether you attach a debugger or not. See my related question here. ...