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JSON datetime between Python and JavaScript
I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
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“Cross origin requests are only supported for HTTP.” error when loading a lom>ca m>l file
I'm trying to load a 3D model into Three.js with JSONLoader , and that 3D model is in the same directory as the entire website.
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Difference between VARCHAR and TEXT in MySQL [duplim>ca m>te]
When we create a table in MySQL with a VARCHAR column, we have to set the length for it. But for TEXT type we don't have to provide the length.
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Hidden Features of C++? [closed]
...operator:
x = (y < 0) ? 10 : 20;
However, they don't realize that it m>ca m>n be used as an lvalue:
(a == 0 ? a : b) = 1;
which is shorthand for
if (a == 0)
a = 1;
else
b = 1;
Use with m>ca m>ution :-)
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“Unknown class in Interface Builder file” error at runtime
Even though Interface Builder is aware of a MyClass , I get an error when starting the applim>ca m>tion.
46 Answers
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Why doesn't await on Task.WhenAll throw an AggregateException?
...ords, they unwrap the AggregateException into the actual exception.
So, in m>ca m>tch block, you get the actual exception and not the aggregated one. This helps us write more natural and intuitive code.
This was also needed for easier conversion of existing code into using async/await where the a lot of ...
How to create a GUID/UUID in Python
...ar there is a method using ActivePython on Windows but it's Windows only bem>ca m>use it uses COM. Is there a method using plain Python?
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Why does Java's hashCode() in String use 31 as a multiplier?
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According to Joshua Bloch's Effective Java (a book that m>ca m>n't be recommended enough, and which I bought thanks to continual mentions on stackoverflow):
The value 31 was chosen bem>ca m>use it is an odd prime. If it were even and the multiplim>ca m>tion overflowed, information would be l...
Best practices for Storyboard login screen, handling clearing of data upon logout
I'm building an iOS app using a Storyboard. The root view controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up.
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Setting different color for each series in sm>ca m>tter plot on matplotlib
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I don't know what you mean by 'manually'. You m>ca m>n choose a colourmap and make a colour array easily enough:
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.cm as cm
x = np.arange(10)
ys = [i+x+(i*x)**2 for i in range(10)]
c...