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What are the differences between the threading and multiprocessing modules?
...sing module. (You can use multiprocessing.dummy to get most of the missing API on top of threads, or you can use higher-level modules like concurrent.futures and not worry about it.)
* It's not actually Python, the language, that has this issue, but CPython, the "standard" implementation of that...
C++ performance vs. Java/C#
...ode (e.g. a generic parser from string to type T, calling standard library API for types T it recognizes, and making the parser easily extensible by its user) is very easy and very efficient, whereas the equivalent in Java or C# is painful at best to write, and will always be slower and resolved at ...
Big O, how do you calculate/approximate it?
...oop, as function calls can do > O(1) work themselves. In the C standard APIs for instance, bsearch is inherently O(log n), strlen is O(n), and qsort is O(n log n) (technically it has no guarantees, and quicksort itself has a worst case complexity of O(n²), but assuming your libc author isn't a m...
What are the effects of exceptions on performance in Java?
...ating that a method might fail. There's no other way to tell from just the API which methods are expected to always (mostly) work and which are expected to report failure.
Exceptions are safer than sentinels, faster than result objects, and less surprising than either. I'm not suggesting that try/c...
What does the Java assert keyword do, and when should it be used?
... I don't agree. Many of my assertions are used to make sure my API is getting called correctly. For example, I might write a private method that should only be called when an object holds a lock. If another developer calls that method from part of the code that doesn't lock the object, t...
How to detect if multiple keys are pressed at once using JavaScript?
...ener left over.
For thoroughness, here is a quick reference to the class's API, presented in C/Java style so you know what they return and what arguments they expect.
Boolean key_down (String key);
Returns true if key is down, false otherwise.
Boolean keys_down (String key1, String key2, ...);
...
How can I reliably determine the type of a variable that is declared using var at design time?
... of a possible 'interface' if you already had the compiler available as an API to call into.
The other route
Secure hash and salt for PHP passwords
...ly shared hosts, @ircmaxell has built a compatibility layer for the coming API that is backward compatible to PHP 5.3.7.
Cryptography Recap & Disclaimer
The computational power required to actually crack a hashed password doesn't exist. The only way for computers to "crack" a password is to re...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
... if proper self-describing identifiers had been used instead of arbitrary capital letters. :-)
– Ti Strga
Aug 19 '13 at 21:31
14
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...on operator
example. This syntax is used in other
places in the Scala API, such as
constructing Range instances:
val firstTen:Range = 0 to 9
Here again, to(Int) is a vanilla
method declared inside a class
(there’s actually some more implicit
type conversions here, but you get t...