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What kind of virtual machine is BEAM (the Erlang VM)?
...t like any other OS process. Like other OS processes it uses resources provided by the OS like memory, i/o devices, etc. So everything specifically Erlang like processes/fault-tolerance/applications/etc is handled inside the Erlang VM process.
– rvirding
Oct 20...
What does new self(); mean in PHP?
...ne of the situations in which using the same word in english is not a good idea ;-( I'll edit my answer to fix this ;; thanks :-)
– Pascal MARTIN
Mar 7 '10 at 13:47
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HTML5 Canvas vs. SVG vs. div
...s of each, but I will give some of the relevant results of my tests to consider for your specific application:
I made Canvas and HTML DIV test pages, both had movable "nodes." Canvas nodes were objects I created and kept track of in Javascript. HTML nodes were movable Divs.
I added 100,000 nodes t...
What is a MIME type?
...plug-ins, as in what I need to know about it for building plug-ins, is provided, please explain in clear and simple words. What is it? Why do plug-ins have a MIME type?
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Python: fastest way to create a list of n lists
...ion and is about 15 % faster on my machine.
Edit: Using NumPy, you can avoid the Python loop using
d = numpy.empty((n, 0)).tolist()
but this is actually 2.5 times slower than the list comprehension.
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phpunit mock method multiple calls with different arguments
...nything() as one of the parameters to ->logicalOr() to allow you to provide a default value for other arguments than the one you're interested in.
– MatsLindh
Jan 27 '17 at 13:31
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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Rabbit's queues reside in memory and will therefore be much faster than implementing this in a database. A (good)dedicated message queue should also provide essential queueing related features such as throttling/flow control, and the ability to...
When should I use std::thread::detach?
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Use join
Unless you need to have more flexibility AND are willing to provide a synchronization mechanism to wait for the thread completion on your own, in which case you may use detach
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Possible heap pollution via varargs parameter
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When you declare
public static <T> void foo(List<T>... bar) the compiler converts it to
public static <T> void foo(List<T>[] bar) then to
public static void foo(List[] bar)
The danger then arises that you'll mistakenly assign incorrect value...
Argparse: Required arguments listed under “optional arguments”?
...them is required. Unfortunately, when the user runs the script without providing the argument, the displayed usage/help text does not indicate that there is a non-optional argument, which I find very confusing. How can I get python to indicate that an argument is not optional?
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