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What is the difference between class and instance attributes?
...ances. The attribute on an instance is unique to that instance.
If coming from C++, attributes on the class are more like static member variables.
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Is there a way to pass optional parameters to a function?
... the parameter. If the parameter has a non-default value, you know it came from the caller.
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How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
4 Answers
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Get hostname of current request in node.js Express
...the hostname that a request object I'm sending a response to was requested from.
5 Answers
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Create a menu Bar in WPF?
... it doesn't give you any items to put in the bar. You need something like (from one of my own projects):
<!-- Menu. -->
<Menu Width="Auto" Height="20" Background="#FFA9D1F4" DockPanel.Dock="Top">
<MenuItem Header="_Emulator">
<MenuItem Header="Load..." Click="MenuItem_C...
How to read XML using XPath in Java
...ks Yishai, I clear my question more, if I want to get a particular value from child nodes on a parent node. how that will be done? thanks
– kaibuki
May 12 '10 at 5:56
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How do you enable the escape key close functionality in a Twitter Bootstrap modal?
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This though prevents autofocus from input fields.
– topless
Sep 16 '14 at 15:15
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How can I convert this foreach code to Parallel.ForEach?
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Iterations takes place sequentially, one by one
foreach loop is run from a single Thread.
foreach loop is defined in every framework of .NET
Execution of slow processes can be slower, as they're run serially
Process 2 can't start until 1 is done. Process 3 can't start until 2 &...
Escape quotes in JavaScript
I'm outputting values from a database (it isn't really open to public entry, but it is open to entry by a user at the company -- meaning, I'm not worried about XSS ).
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Matplotlib scatterplot; colour as a function of a third variable
...sed the y position of the point as the value that determines the color:
from matplotlib import pyplot as plt
x = [1, 2, 3, 4, 5, 6, 7, 8, 9]
y = [125, 32, 54, 253, 67, 87, 233, 56, 67]
color = [str(item/255.) for item in y]
plt.scatter(x, y, s=500, c=color)
plt.show()
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