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difference between each.with_index and each_with_index in Ruby?
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to allow wider usage with various enumerators.
to allow index to start from a number other than 0.
Today, using with_index would be better from the point of view of generality and readability, but from the point of view of speeding up the code, each_with_index runs slightly faster than each.wi...
SQL command to display history of queries
... commands here are for a single session of MySQL, e.g. you can enter these from the interactive MySQL command line. If you want them to be a permanent feature of your MySQL instance, you need to put those commands in /etc/mysql/my.cnf and restart the MySQL service.
– jeffmjack
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Putting text in top left corner of matplotlib plot
...e this free space for the text.
EDIT: here you have an example:
In [17]: from pylab import figure, text, scatter, show
In [18]: f = figure()
In [19]: ax = f.add_subplot(111)
In [20]: scatter([3,5,2,6,8],[5,3,2,1,5])
Out[20]: <matplotlib.collections.CircleCollection object at 0x0000000007439A90&...
How do I represent a time only value in .NET?
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@sduplooy: Fancy helping us port it from Joda Time then? :)
– Jon Skeet
Jan 10 '10 at 15:23
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How to create NS_OPTIONS-style bitmask enumerations in Swift?
... 0 }
static var allZeros: MyOptions { return self(0) }
static func fromMask(raw: UInt) -> MyOptions { return self(raw) }
var rawValue: UInt { return self.value }
static var None: MyOptions { return self(0) }
static var FirstOption: MyOptions { return self(1 << 0) }
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How do I get indices of N maximum values in a NumPy array?
... @1a1a11a it means reverse an array (literally, takes a copy of an array from unconstrained min to unconstrained max in a reversed order)
– FizBack
Oct 19 '16 at 13:51
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Uses for the Java Void Reference Type?
...t is also often used in for example Map values (although Collections.newSetFromMap uses Boolean as maps don't have to accept null values) and java.security.PrivilegedAction.
I wrote a weblog entry on Void a few years back.
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Latest jQuery version on Google's CDN
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UPDATE 7/3/2014: As of now, jquery-latest.js is no longer being updated.
From the jQuery blog:
We know that http://code.jquery.com/jquery-latest.js is abused
because of the CDN statistics
showing it’s the most popular file. That wouldn’t be the case if it
was only being used by deve...
Scatterplot with marginal histograms in ggplot2
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You're right. They're sampled from the same distribution though, so the marginal histograms should theoretically match the scatter plot.
– oeo4b
Dec 17 '11 at 17:03
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What is the use of static constructors?
... For anyone interested how static constructor initialization changed from CLR 2 to CLR 4, Jon Skeet's blog post (codeblog.jonskeet.uk/2010/01/26/…) sums it up nicely: CLR 2 uses eager initialization, while CLR 4 uses lazy initialization.
– Derreck Dean
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