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Best way to test for a variable's existence in PHP; isset() is clearly broken
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Mark Amery
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answered Jan 6 '09 at 21:07
ZoredacheZo...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
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98
Update: The final Scala 2.8 release has a mechanism like the one I described. If you look up BitSet in the scaladocs you find: def map ...
What is “rvalue reference for *this”?
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There is an additional use case for the lvalue ref-qualifier form. C++98 has language that allows non-const member functions to be called for class instances that are rvalues. This leads to all kinds of weirdness that is against the very concept of rvalueness and deviates from how built-in type...
Colors in JavaScript console
... 50%), 7px 96px hsl(518.4, 100%, 50%), 5px 97px hsl(523.8, 100%, 50%), 3px 98px hsl(529.2, 100%, 50%), 1px 99px hsl(534.6, 100%, 50%), 7px 100px hsl(540, 100%, 50%), -1px 101px hsl(545.4, 100%, 50%), -3px 102px hsl(550.8, 100%, 50%), -5px 103px hsl(556.2, 100%, 50%), -7px 104px hsl(561.6, 100%, 50%)...
List comprehension vs map
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Python 2: You should use map and filter instead of list comprehensions.
An objective reason why...
Create an index on a huge MySQL production table without table locking
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kennytm
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answered Jan 10 '13 at 0:28
Dave DopsonDave Dopson
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How using try catch for exception handling is best practice
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catch(Exception ex) { throw ex; } in C# is worse than redundant (regardless of the exception type you're catching). To rethrow, use throw;....
Hidden Features of MySQL
...LL |
| 5 | system user | | NULL | Connect | 98 | Waiting for master to send event | NULL |
| 6 | system user | | NULL | Connect | 5018 | Reading event from the relay log | NULL |
+-----+------+-----------+---------+---------+---...
Python str vs unicode types
...(0xE2 0x89 0xA0)
???? → 11110000 10011111 10011000 10000010 (0xF0 0x9F 0x98 0x82)
The way UTF-8 encodes characters to bit strings is very well described here.
Unicode and Encodings
Looking at the above examples, it becomes clear how Unicode is useful.
For example, if I'm Latin-1 and I want to...
No generic implementation of OrderedDictionary?
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Implementing a generic OrderedDictionary isn't terribly difficult, but it's unnecessarily time ...