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How to delete a record in Django models?
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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
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answered Nov 26 '09 at 5:09
pilcrowpilcrow
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Unique constraint that allows empty values in MySQL
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Yes, you can do this. See the MySQL reference (version 5.5).
A UNIQUE index creates a constraint such that all values in the index must be distinct. An error occurs if you try to add a new row with a key value that matches an existing row. For all engines, a UNIQUE index all...
Undo a git stash
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695
You can just run:
git stash pop
and it will unstash your changes.
If you want to preserve th...
Convert Dictionary to semicolon separated string in c#
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LukeHLukeH
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Numpy array assignment with copy
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answered Oct 30 '13 at 7:59
BlckknghtBlckknght
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Calling static generic methods
... type inference based on the target of the assignment, as per JLS section 15.12.2.8. To be explicit, you'd call something like:
Foo.<String>createFoo();
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Viewing all `git diffs` with vimdiff
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edited Aug 12 '15 at 22:22
Undo♦
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Why do we need fibers
..., right? Check this out:
InfiniteSeries.new.take(10) # => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
I don't know if this uses fibers under the hood, but it could. Fibers can be used to implement infinite lists and lazy evaluation of a series. For an example of some lazy methods defined with Enumerators,...