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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table

... answered Apr 19 '12 at 10:49 Matt DowleMatt Dowle 54.6k2020 gold badges157157 silver badges210210 bronze badges ...
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In Firebase, is there a way to get the number of children of a node without loading all the node dat

... this? – Jim Cooper Feb 23 '14 at 1:49 20 Is a client-side counter in a transaction secure though...
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Running unittest with typical test directory structure

... answered Jun 17 '14 at 14:49 PierrePierre 9,44255 gold badges3434 silver badges5454 bronze badges ...
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How do I import the Django DoesNotExist exception?

... Steve JalimSteve Jalim 10.7k3131 silver badges4949 bronze badges add a comment  |  ...
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Git merge two local branches

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MySQL Fire Trigger for both Insert and Update

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Logging framework incompatibility

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Is it possible to reopen a closed branch in Mercurial?

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Get and set position with jQuery .offset()

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Replace one character with another in Bash

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