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How to format an inline code in Confluence?
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edited Mar 20 at 6:03
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answered Oct 29 '12 ...
Import pandas dataframe column as string not int
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Why not use Double or Float to represent currency?
...ately represent most simple fractions. For instance, you can't represent 1/3: the decimal representation is repeating (0.3333...), so there is no finite integer that you can multiply by a power of 10 to get 1/3. You could settle on a long sequence of 3's and a small exponent, like 333333333 * 10-10,...
Convert command line arguments into an array in Bash
...nto the $@ value, use set:
$ set -- apple banana "kiwi fruit"
$ echo "$#"
3
$ echo "$@"
apple banana kiwi fruit
Understanding how to use the argument structure is particularly useful in POSIX sh, which has nothing else like an array.
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Check for array not empty: any?
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Marcel JackwerthMarcel Jackwerth
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Ruby on Rails and Rake problems: uninitialized constant Rake::DSL
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193
A tweet from DHH earlier. Rake .9.0 breaks Rails and several other things, you need to:
gem "ra...
How can I make setuptools install a package that's not on PyPI?
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edited Jul 5 '17 at 23:31
devin_s
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answered A...
Why does 2 mod 4 = 2?
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edited Aug 29 '09 at 17:33
Joe Phillips
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answ...
What is the most efficient/elegant way to parse a flat table into a tree?
...id, descendant_id) VALUES
(1,1), (1,2), (1,4), (1,6),
(2,2), (2,4),
(3,3), (3,5),
(4,4),
(5,5),
(6,6);
Now you can get a tree starting at node 1 like this:
SELECT f.*
FROM FlatTable f
JOIN ClosureTable a ON (f.id = a.descendant_id)
WHERE a.ancestor_id = 1;
The output (in MySQL c...
CSS border less than 1px [duplicate]
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A pixel is the smallest unit value to render something with, but you can trick thickness with op...