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Getting individual colors from a color map in matplotlib

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Rails Migration: Remove constraint

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rspec 3 - stub a class method

I am upgrading from rspec 2.99 to rspec 3.0.3 and have converted instance methods to use allow_any_instance_of , but haven't figured out how to stub a class method. I have code like this: ...
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cancelling a handler.postdelayed process

I am using handler.postDelayed() to create a waiting period before the next stage of my app takes place. During the wait period I am displaying a dialog with progress bar and cancel button. ...
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Finding three elements in an array whose sum is closest to a given number

Given an array of integers, A 1 , A 2 , ..., A n , including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok. ...
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Instance v state variables in react.js

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Java 8: performance of Streams vs Collections

I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections. ...
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What is the Bash equivalent of Python's pass statement

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Find substring in the string in TWIG

I want to find substring of the string or check if there is no such substring using Twig. On the words, I need analogue of 'strstr' or 'strpos' in php. I googled and searched this issue in stackoverflow but nothing found. Does someone know how to solve this problem? ...
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Java regular expression OR operator

This may be a dumb question, but I couldn't find it anywhere: 1 Answer 1 ...