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Ruby on Rails form_for select field with class

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How to make a class conform to a protocol in Swift?

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How to create directories recursively in ruby?

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Create module variables in Ruby

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Permanently adding a file path to sys.path in Python

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Java: int array initializes with nonzero elements

...d that this bug is no longer available for public access in Oracle bug database. Unfortunately, I do not know for the reasons Oracle removed it from public access, but it is available in Google cache. Also, this bug has caught the attention of Redhat: the CVE identifiers CVE-2012-4420 (bugzilla) an...
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Image fingerprint to compare similarity of many images

...://redaktor.me/phasher/demo_js/index.html Unfortunately this is "bitcount"-based but will recognize rotated images. Another approach in javascript was to build a luminosity histogram from the image by the help of canvas. You can visualize a polygon histogram on the canvas and compare that polygon in...
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How do I sort an array of hashes by a value in the hash?

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Declaration suffix for decimal type

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Line continuation for list comprehensions or generator expressions in python

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