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u'\ufeff' in Python string
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The Unicode character U+FEFF is the byte order mark, or BOM, and is used to tell the difference between big- and little-endian UTF-16 encoding. If you decode the web page using the right codec, Python will remove it for you. Examples:
#!python2
#coding: utf8
u = u'ABC'
e8 = u.encode...
What does T&& (double ampersand) mean in C++11?
I've been looking into some of the new features of C++11 and one I've noticed is the double ampersand in declaring variables, like T&& var .
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Why would finding a type's initializer throw a NullReferenceException?
...rent. Unlike the good case that calls CORINFO_HELP_GETSHARED_GCSTATIC_BASE and reads what ends up as the critical pointer that causes the AV from some member at offset 1F0 in a return structure, the optimized code loads it from a static address. And of course 12721220h contains NULL:
0:000> dp 1...
Logical operators for boolean indexing in Pandas
I'm working with boolean index in Pandas.
The question is why the statement:
3 Answers
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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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How do I add 24 hours to a unix timestamp in php?
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As you have said if you want to add 24 hours to the timestamp for right now then simply you can do:
<?php echo strtotime('+1 day'); ?>
Above code will add 1 day or 24 hours to your current timestamp.
in place of +1 day you can t...
Why does javascript map function return undefined?
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Ahh...I did not know there was a filter function.Thanks.
– Akshat Jiwan Sharma
Apr 16 '13 at 12:31
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How do I use arrays in C++?
...sed virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, when you read legacy code or interact with a...
Unicode equivalents for \w and \b in Java regular expressions?
Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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What are metaclasses in Python?
In Python, what are metaclasses and what do we use them for?
22 Answers
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