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In C#, why is String a reference type that behaves like a value type?
... to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)
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Mongodb Explain for Aggregation framework
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Starting with MongoDB version 3.0, simply changing the order from
collection.aggregate(...).explain()
to
collection.explain().aggregate(...)
will give you the desired results (documentation here).
For older versions >= 2.6, you will need to use the explain option for aggregat...
Java Desktop application: SWT vs. Swing [closed]
...ke java OpenGL)
Cons Swing:
Native look and feel may behave
different from the real native
system.
heavy components (native/awt) hide swing components, not a problem most of the time as as use of heavy components is rather rare
Pros SWT:
uses native elements when possible, so always native ...
What is the difference between “px”, “dip”, “dp” and “sp”?
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From the Android Developer Documentation:
px
Pixels - corresponds to actual pixels on the screen.
in
Inches - based on the physical size of the screen.
1 Inch = 2.54 centimeters
mm
Millimeters - based on ...
What's so great about Lisp? [closed]
...sed Lisp loves it, yet the most popular languages these days are descended from C.
7 Answers
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What are the disadvantages to declaring Scala case classes?
...'t necessarily in the contract. At least, you could explicitly exclude it from the contract when you first write the class.
– herman
Oct 6 '13 at 9:13
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How can I join elements of an array in Bash?
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@musiphil Wrong. From bash man: "The format is reused as necessary to consume all of the arguments. Using two format placeholders like in printf "%s%s" would use separator in the first instance ONLY set of output, and then simply concatenate ...
How to tell which commit a tag points to in Git?
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From Igor Zevaka:
Summary
Since there are about 4 almost equally acceptable yet different answers I will summarise all the different ways to skin a tag.
git rev-list -1 $TAG (answer). git rev-list outputs the commits that...
Starting python debugger automatically on error
...hat traceback. You don't need to pass traceback object to pdb.post_mortem. From docs: If no traceback is given, it uses the one of the exception that is currently being handled (an exception must be being handled if the default is to be used).
– Piotr Dobrogost
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Access data in package subdirectory
... Brilliant suggestion, thanks. I implemented a standard file open using from pkg_resources import resource_filename open(resource_filename('data', 'data.txt'), 'rb')
– eageranalyst
Feb 26 '14 at 23:32
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