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Does Python support multithreading? Can it speed up execution time?
.... Maybe you or someone could write a new answer that I can accept that provides some specific examples of common modules/codes/operations where threading will be allowed by the GIL to run paralell and thus faster (eg examples of those I/O and network/socket read operations that have been mentioned, ...
XPath to select multiple tags
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That is super. Where did you come up with that?
– Keith Tyler
Jan 10 '19 at 2:42
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When serving JavaScript files, is it better to use the application/javascript or application/x-javas
.../javascript is obsolete
application/x-javascript was experimental while deciding to move to…
application/javascript is the current official MIME type for JS
That said, browsers often ignore the content-type sent by the server and pay a lot of attention to the type attribute (and some may not yet...
How do I write good/correct package __init__.py files
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__all__ is very good - it helps guide import statements without automatically importing modules
http://docs.python.org/tutorial/modules.html#importing-from-a-package
using __all__ and import * is redundant, only __all__ is needed
I think one of the most pow...
What's the fastest way to loop through an array in JavaScript?
...swered Aug 31 '11 at 3:00
jondavidjohnjondavidjohn
57.9k2121 gold badges108108 silver badges150150 bronze badges
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Can a Windows batch file determine its own file name?
...ive
p -- path
n -- file name
x -- extension
f -- full path
E.g., from inside c:\tmp\foo.bat, %~nx0 gives you "foo.bat", whilst %~dpnx0 gives "c:\tmp\foo.bat". Note the pieces are always assembled in canonical order, so if you get cute and try %~xnpd0, you still get "c:\tmp\foo.bat"
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Why is arr = [] faster than arr = new Array?
...ed:
[]: ARRAY_INIT
[1]: ARRAY_INIT (NUMBER)
[1, foo]: ARRAY_INIT (NUMBER, IDENTIFIER)
new Array: NEW, IDENTIFIER
new Array(): NEW, IDENTIFIER, CALL
new Array(5): NEW, IDENTIFIER, CALL (NUMBER)
new Array(5,4): NEW, IDENTIFIER, CALL (NUMBER, NUMBER)
new Array(5, foo): NEW, IDENTIFIER, CALL (NUMBER, I...
Convert blob URL to normal URL
... If blob urls don't point to server data, then how come Youtube videos' src url look like: src="blob:https%3A//www.youtube.com/44f26667-03f1-4978-9eed-af0cbf11dd67" (in Chrome)
– bhh1988
Sep 3 '14 at 15:53
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What is the AppDelegate for and how do I know when to use it?
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I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normally involv...
Default value of function parameter
...ied.
For example, you can declare a function with no default arguments
void foo(int a, int b);
In order to call that function after such declaration you'll have to specify both arguments explicitly.
Later (further down) in the same translation unit, you can re-declare it again, but this time w...