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Task not serializable: java.io.NotSerializableException when calling function outside closure only o

Getting strange behavior when calling function outside of a closure: 9 Answers 9 ...
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What are these attributes: `aria-labelledby` and `aria-hidden`

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show all tags in git log

Why does git log --decorate not display more than one tag per commit? 3 Answers 3 ...
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How to run travis-ci locally

... change to .travis.yml and every little change I make to the source in order to run the build. With jenkins you can download jenkins and run locally. Does travis offer something like this? ...
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How do I upload a file with metadata using a REST web service?

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Does Redis persist data?

I understand that Redis serves all data from memory, but does it persist as well across server reboot so that when the server reboots it reads into memory all the data from disk. Or is it always a blank store which is only to store data while apps are running with no persistence? ...
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How to remove gaps between subplots in matplotlib?

The code below produces gaps between the subplots. How do I remove the gaps between the subplots and make the image a tight grid? ...
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Why 0 is true but false is 1 in the shell?

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how does multiplication differ for NumPy Matrix vs Array classes?

...ion, you need to use the function matrixmultipy(). I feel this makes the code very unreadable. 8 Answers ...
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Simplest way to detect a mobile device in PHP

What is the simplest way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...