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Multi-line commands in GHCi
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answered Dec 9 '11 at 8:52
Nicolas WuNicolas Wu
4,26722 gold badges2222 silver badges3232 bronze badges
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Version number comparison in Python
... then compare the lists of numbers.
import re
def mycmp(version1, version2):
def normalize(v):
return [int(x) for x in re.sub(r'(\.0+)*$','', v).split(".")]
return cmp(normalize(version1), normalize(version2))
This is the same approach as Pär Wieslander, but a bit more compact:
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Which characters need to be escaped when using Bash?
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291
There are two easy and safe rules which work not only in sh but also bash.
1. Put the whole s...
How to get number of entries in a Lua table?
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132
You already have the solution in the question -- the only way is to iterate the whole table with...
How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
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382
Place the following code in config/initializers/quiet_assets.rb
if Rails.env.development?
Rai...
Common programming mistakes for Clojure developers to avoid [closed]
...va hexadecimal values via the 0x prefix. You can also use any base between 2 and 36 by using the "base+r+value" notation, such as 2r101010 or 36r16 which are 42 base ten.
Trying to return literals in an anonymous function literal
This works:
user> (defn foo [key val]
{key val})
#'user/fo...
How to send JSON instead of a query string with $.ajax?
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257
You need to use JSON.stringify to first serialize your object to JSON, and then specify the co...
Print text instead of value from C enum
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answered Jul 2 '10 at 18:46
Tyler McHenryTyler McHenry
66.2k1515 gold badges112112 silver badges157157 bronze badges
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symfony 2 twig limit the length of the text and put three dots
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208
{{ myentity.text|length > 50 ? myentity.text|slice(0, 50) ~ '...' : myentity.text }}
You...
PHP substring extraction. Get the string before the first '/' or the whole string
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262
Use explode()
$arr = explode("/", $string, 2);
$first = $arr[0];
In this case, I'm using th...