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Hidden Features of C++? [closed]
... that it can be used as an lvalue:
(a == 0 ? a : b) = 1;
which is shorthand for
if (a == 0)
a = 1;
else
b = 1;
Use with caution :-)
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edited Jan 7 '09 at 21:...
Mocking vs. Spying in mocking frameworks
...can mock an object or spy on it. What's the difference between the two and when would/should I use one over the other?
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Include an SVG (hosted on GitHub) in MarkDown
...files this means (for certain content types) you can get the wrong headers and things break in the browser.
When this question was asked (in 2012) SVGs didn't work. Since then Github has implemented various improvements. Now (at least for SVG), the correct Content-Type headers are sent.
Examples
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Javascript parseInt() with leading zeros
...aScript treat strings starting with 0 as octal (when no base is specified) and neither 08 nor 09 are valid octal numbers.
From the Mozilla documentation:
If radix is undefined or 0, JavaScript assumes the following:
If the input string begins with "0x" or "0X", radix is 16
(hexadecim...
virtualenvwrapper and Python 3
I installed python 3.3.1 on ubuntu lucid and successfully created a virtualenv as below
9 Answers
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If vs. Switch Speed
...es a hash table to dispatch these. The hash table uses the strings as keys and delegates to the case codes as values.
This has asymptotic better runtime than lots of chained if tests and is actually faster even for relatively few strings.
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What are allowed characters in cookies?
What are the allowed characters in both cookie name and value? Are they same as URL or some common subset?
13 Answers
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What is the difference between assert, expect and should in Chai?
What is the difference between assert , expect and should , and when to use what?
2 Answers
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Simultaneously merge multiple data.frames in a list
... issue here is that each data.frame differs in terms of the number of rows and columns, but they all share the key variables (which I've called "var1" and "var2" in the code below). If the data.frames were identical in terms of columns, I could merely rbind , for which plyr's rbind.fill would...
Maven error “Failure to transfer…”
... in (*.lastUpdated) do del %i
Then rightclick on your project in eclipse and choose Maven->"Update Project ...", make sure "Update Dependencies" is checked in the resulting dialog and click OK.
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