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What is the “assert” function?
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302
assert will terminate the program (usually with a message quoting the assert statement) if its...
Rails: How can I set default values in ActiveRecord?
...some default values?
Overriding after_initialize is deprecated as of Rails 3. When I override after_initialize in rails 3.0.3 I get the following warning in the console:
DEPRECATION WARNING: Base#after_initialize has been deprecated, please use Base.after_initialize :method instead. (called fro...
Comparing numbers in Bash
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931
In bash, you should do your check in arithmetic context:
if (( a > b )); then
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fi
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Is it possible to style a select box? [closed]
...ldn't be too hard to roll your own.
Here's one: https://gist.github.com/1139558 (Used to he here, but it looks like the site is down.)
Use it like this:
$('#myselectbox').selectbox();
Style it like this:
div.selectbox-wrapper ul {
list-style-type:none;
margin:0px;
padding:0px;
}
div.sele...
How to extract numbers from a string in Python?
...to extract only positive integers, try the following:
>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]
I would argue that this is better than the regex example because you don't need another module and it's more readable b...
jQuery .scrollTop(); + animation
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318
To do this, you can set a callback function for the animate command which will execute after t...
Using Excel OleDb to get sheet names IN SHEET ORDER
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answered Jul 22 '09 at 13:33
JamesJames
72.6k1717 gold badges151151 silver badges216216 bronze badges
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Intelligent point label placement in R
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edited Sep 30 '11 at 15:16
answered Sep 30 '11 at 15:04
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How to pass in password to pg_dump?
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317
Create a .pgpass file in the home directory of the account that pg_dump will run as. See Postg...