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Check if Python Package is installed

...o install from PyPI or from any other alternative source (like pip install http://some.site/package-name.zip or any other archive type). When installing manually using python setup.py install. When installing from system repositories, like sudo apt install python-requests. Cases when it might n...
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Validate phone number with JavaScript

...mber and the format it in the display or before saving it to the database. http://regexr.com/3c53v share | improve this answer | follow | ...
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Assigning default value while creating migration file

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Unittest setUp/tearDown for several tests

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Postgresql: Conditionally unique constraint

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What's the standard way to work with dates and times in Scala? Should I use Java types or there are

...e libraries, making them more idiomatic to use within Scala. (copied from https://github.com/jorgeortiz85/scala-time) share | improve this answer | follow | ...
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Best way to convert IList or IEnumerable to Array

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Bootstrap 3 - Why is row class is wider than its container?

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GCD to perform task in main thread

..., block) } Its included as a standard function in my repo, check it out: https://github.com/goktugyil/EZSwiftExtensions share | improve this answer | follow ...
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Collections.emptyList() returns a List?

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