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Ordering by specific field value first
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148
There's also the MySQL FIELD function.
If you want complete sorting for all possible values:
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How do you add a Dictionary of items into another Dictionary
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172
You can define += operator for Dictionary, e.g.,
func += <K, V> (left: inout [K:V], rig...
How to pass parameters to a view
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168
You just need to pass the extra parameter when you construct the MenuView. No need to add the ...
What's the difference between equal?, eql?, ===, and ==?
...ngs which have interesting === implementations:
Range
Regex
Proc (in Ruby 1.9)
So you can do things like:
case some_object
when /a regex/
# The regex matches
when 2..4
# some_object is in the range 2..4
when lambda {|x| some_crazy_custom_predicate }
# the lambda returned true
end
See my ans...
iPad browser WIDTH & HEIGHT standard
...sults of running jquery's $(window).width() and $(window).height() on iPad 1 browser.
When page has no meta viewport tag:
Portrait: 980x1208
Landscape: 980x661
When page has either of these two meta tags:
<meta name="viewport" content="initial-scale=1,user-scalable=no,maximum-scale=1,width=...
Adding a legend to PyPlot in Matplotlib in the simplest manner possible
...import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 20, 1000)
y1 = np.sin(x)
y2 = np.cos(x)
plt.plot(x, y1, "-b", label="sine")
plt.plot(x, y2, "-r", label="cosine")
plt.legend(loc="upper left")
plt.ylim(-1.5, 2.0)
plt.show()
Slightly modified from this tutorial: http://jakevd...
How to determine if a point is in a 2D triangle? [closed]
...nce issues.
And here's some code to get you started:
float sign (fPoint p1, fPoint p2, fPoint p3)
{
return (p1.x - p3.x) * (p2.y - p3.y) - (p2.x - p3.x) * (p1.y - p3.y);
}
bool PointInTriangle (fPoint pt, fPoint v1, fPoint v2, fPoint v3)
{
float d1, d2, d3;
bool has_neg, has_pos;
...
How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
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124
The Easy Way
If you're a typical developer, you can install the easy way, using instructions ...
Which one will execute faster, if (flag==0) or if (0==flag)?
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16 Answers
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