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What is the best method of handling currency/money?
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add_column :items, :price, :decimal, :precision => 8, :scale => 2
In Rails, the :decimal type is returned as BigDecimal, which is great for price calculation.
If you insist on using integers, you will have to manually convert to and from BigDecimals everywhere, which will probably just...
Check for current Node Version
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206
Try to look at process.version property.
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RegEx to parse or validate Base64 data
... words, you can use the following:
^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$
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What is the difference between Θ(n) and O(n)?
... Ω(g(x))
Basically when we say an algorithm is of O(n), it's also O(n2), O(n1000000), O(2n), ... but a Θ(n) algorithm is not Θ(n2).
In fact, since f(n) = Θ(g(n)) means for sufficiently large values of n, f(n) can be bound within c1g(n) and c2g(n) for some values of c1 and c2, i.e. the grow...
How do I extract the contents of an rpm?
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Did you try the rpm2cpio commmand? See the example below:
$ rpm2cpio php-5.1.4-1.esp1.x86_64.rpm | cpio -idmv
/etc/httpd/conf.d/php.conf
./etc/php.d
./etc/php.ini
./usr/bin/php
./usr/bin/php-cgi
etc
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How can I link to a specific glibc version?
...thing on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
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Which version of Python do I have installed?
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22 Answers
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How to concatenate items in a list to a single string?
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edited Sep 17 '12 at 5:48
answered Sep 17 '12 at 5:33
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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
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Create and append dynamically
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239
Use the same process. You already have the variable iDiv which still refers to the original el...