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What's the (hidden) cost of Scala's lazy val?

...nswered Jun 15 '10 at 7:51 oxbow_lakesoxbow_lakes 127k5252 gold badges305305 silver badges442442 bronze badges ...
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Merge Images Side by Side(Horizontally)

...hips with the montage utility. Montage will append each image side-by-side allowing you to adjust spacing between each image (-geometry), and the general layout (-tile). montage [0-5].png -tile 5x1 -geometry +0+0 out.png Other examples can be found on Montage Usage page ...
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Select between two dates with Django

... Use the __range operator: ...filter(current_issue__isnull=True, created_at__range=(start_date, end_date)) share | improve this an...
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Django Admin - Disable the 'Add' action for a specific model

...also register MyAdmin like: admin.site.register(MyModel, MyModelAdmin) Add all into the admin.py of the models`s app folder. – djangonaut Apr 23 '18 at 9:16 ...
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Resharper- Find all unused classes

...g the "Find Usages" option. Is there any way I can see or get the list of all the unused classes or files in my project ? ...
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How to write to Console.Out during execution of an MSTest test

...with a file upload feature in our web application. It only happens occasionally and without any special pattern. We have been trying to figure it out for a long time, adding debug information anywhere we can think it might help, crawling the logs etc, but we have not been able to reproduce or figure...
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Python: Tuples/dictionaries as keys, select, sort

...es and so on. I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g., ...
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How to make a variadic macro (variable number of arguments)

... The reason for ## before VA_ARGS is that it swallows the preceding comma in case the variable-argument list is empty, eg. FOO("a") expands to printf("a"). This is an extension of gcc (and vc++, maybe), C99 requires at least one argument to be present in place of the elli...
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Android OpenGL ES and 2D

...ur canvas with the proper GL flags for 2D (sprite) rendering. You should really take a look at SpriteMethodTest by the same author of replica island: http://code.google.com/p/apps-for-android/source/browse/trunk/SpriteMethodTest See this question where I posted my own code: Using OpenGL to replace ...
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Get last result in interactive Python shell

... Underscore. >>> 5+5 10 >>> _ 10 >>> _ + 5 15 >>> _ 15 share | improve this answer | follow |...