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Building and running app via Gradle and Android Studio is slower than via Eclipse

...of which building takes about 20-30 seconds each time. When I press Run in Android Studio, I have to wait every time to rebuild the app, which is extremely slow. ...
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Call apply-like function on each row of dataframe with multiple arguments from each row

...mns. For each row in the dataframe, I want to call a function on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args: ...
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How to define a preprocessor symbol in Xcode

...o your Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field. Per Steph's comments, the full syntax is: constant_1=VALUE const...
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What are Vertex Array Objects?

...://openglbook.com/the-book/ I got to chapter 2, where I draw a triangle, and I understand everything except VAOs (is this acronym OK?). The tutorial has this code: ...
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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?

...hat does going with a document based NoSQL option buy you over a KV store, and vice-versa? 4 Answers ...
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Why does Math.floor return a double?

...seems inconsistent with the Math.Round functions, which do return int/long and handle the special cases in a different way. – zod May 11 '11 at 11:08 1 ...
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How is Docker different from a virtual machine?

I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy? ...
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How do I make a textbox that only accepts numbers?

...e past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more general solution that could work with perhaps a regular expression, or depend on the values of othe...
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What is the difference between max-device-width and max-width for mobile web?

I need to develop some html pages for iphone/android phones, but what is the difference between max-device-width and max-width ? I need to use different css for different screen size. ...
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What to put in a python module docstring? [closed]

Ok, so I've read both PEP 8 and PEP 257 , and I've written lots of docstrings for functions and classes, but I'm a little unsure about what should go in a module docstring. I figured, at a minimum, it should document the functions and classes that the module exports, but I've also seen a few mod...