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add maven repository to build.gradle

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Can't find the 'libpq-fe.h header when trying to install pg gem

... community wiki 13 revs, 11 users 34%mu is too short ...
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How to convert hashmap to JSON object in Java

... This only works for a String,String map and not a complex String,Object. – slott Nov 28 '13 at 13:34 2 ...
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How do I programmatically determine if there are uncommitted changes?

In a Makefile, I'd like to perform certain actions if there are uncommitted changes (either in the working tree or the index). What's the cleanest and most efficient way to do that? A command that exits with a return value of zero in one case and non-zero in the other would suit my purposes. ...
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How to query nested objects?

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Increment a value in Postgres

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Using .sort with PyMongo

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Difference between the 'controller', 'link' and 'compile' functions when defining a directive

... I'm going to expand your question a bit and also include the compile function. compile function - use for template DOM manipulation (i.e., manipulation of tElement = template element), hence manipulations that apply to all DOM clones of the template associated with the directive. (I...
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How do I create test and train samples from one dataframe with pandas?

... The answer using sklearn from gobrewers14 is the better one. It's less complex and easier to debug. I recommend using the answer below. – So S Oct 2 '17 at 15:51 ...
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What is the `sensor` parameter for in the Google Places API?

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