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How to compare versions in Ruby?
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234
Gem::Version.new('0.4.1') > Gem::Version.new('0.10.1')
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What is the difference between “text” and new String(“text”)?
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12 Answers
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PHP Function with Optional Parameters
I've written a PHP function that can accepts 10 parameters, but only 2 are required. Sometimes, I want to define the eighth parameter, but I don't want to type in empty strings for each of the parameters until I reach the eighth.
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Convert datetime object to a String of date only in Python
...o help you format your date.
E.g.,
import datetime
t = datetime.datetime(2012, 2, 23, 0, 0)
t.strftime('%m/%d/%Y')
will yield:
'02/23/2012'
More information about formatting see here
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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277
Try to start the MySQL server:
mysql.server start
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How comment a JSP expression?
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215
Pure JSP comments look like this:
<%-- Comment --%>
So if you want to retain the "="....
Python: access class property from string [duplicate]
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280
x = getattr(self, source) will work just perfectly if source names ANY attribute of self, incl...
How do I pick 2 random items from a Python set? [duplicate]
...currently have a Python set of n size where n >= 0. Is there a quick 1 or 2 lines Python solution to do it? For example, the set will look like:
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What's the difference between `=` and `
I'm using R 2.8.1 and it is possible to use both = and <- as variable assignment operators. What's the difference between them? Which one should I use?
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What do numbers using 0x notation mean?
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112
Literals that start with 0x are hexadecimal integers. (base 16)
The number 0x6400 is 25600.
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