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The Ruby %r{ } expression
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%r{} is equivalent to the /.../ notation, but allows you to have '/' in your regexp without ha...
Xcode 4 - build output directory
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From the Xcode menu on top, click preferences, select the locations tab, look at the build locat...
How to get a tab character?
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edited Dec 23 '19 at 3:57
Aeyoun
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Is it possible to determine whether ViewController is presented as Modal?
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edited Apr 2 '15 at 11:09
Michael Waterfall
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How to delete a row by reference in data.table?
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Good question. data.table can't delete rows by reference yet.
data.table can add and delete co...
Chrome Extension Message passing: response not sent
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rsanchezrsanchez
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django urls without a trailing slash do not redirect
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answered Oct 20 '09 at 18:49
JiaaroJiaaro
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Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
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edited Mar 7 '14 at 22:08
answered Mar 7 '14 at 22:01
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kill -3 to get java thread dump
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answered Feb 2 '11 at 15:45
Joshua McKinnonJoshua McKinnon
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...the word "FooBar"
CHAR(6) = 6 bytes (no overhead)
VARCHAR(100) = 8 bytes (2 bytes of overhead)
CHAR(10) = 10 bytes (4 bytes of waste)
The bottom line is CHAR can be faster and more space-efficient for data of relatively the same length (within two characters length difference).
Note: Microsoft SQL...