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Rails migration: t.references with alternative name?

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Checking if a list is empty with LINQ

... List.Count is O(1) according to Microsoft's documentation: http://msdn.microsoft.com/en-us/library/27b47ht3.aspx so just use List.Count == 0 it's much faster than a query This is because it has a data member called Count which is updated any time something is added or removed fro...
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LINQ: Distinct values

... Just use the Distinct() with your own comparer. http://msdn.microsoft.com/en-us/library/bb338049.aspx share | improve this answer | follow ...
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What's the reason I can't create generic array types in Java?

... (I believe it is Neal Gafter, but am not sure) See it in context here: http://forums.sun.com/thread.jspa?threadID=457033&forumID=316 share | improve this answer | fol...
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How can you iterate over the elements of an std::tuple?

... << "foo2.bar after mutation: " << foo2.bar << endl; } http://coliru.stacked-crooked.com/a/27b3691f55caf271 share | improve this answer | follow ...
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Heatmap in matplotlib with pcolor?

...My attempt at reproducing the FlowingData graphic in Python # Source : http://flowingdata.com/2010/01/21/how-to-make-a-heatmap-a-quick-and-easy-solution/ # # Other Links: # http://stackoverflow.com/questions/14391959/heatmap-in-matplotlib-with-pcolor # # -------------------------------------...
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How to get a property value based on the name

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Java 8 Iterable.forEach() vs foreach loop

...ter) EDIT: Looks like some of the original proposals for lambdas (such as http://www.javac.info/closures-v06a.html Google Cache) solved some of the issues I mentioned (while adding their own complications, of course). share...
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Shortcut for creating single item list in C#

...ar strings = new List<string> { "This", "That", "The Other" }; See http://msdn.microsoft.com/en-us/library/bb384062(v=vs.90).aspx share | improve this answer | follow...
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Scatter plot and Color mapping in Python

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