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Swift Beta performance: sorting arrays

... tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O]. Here is an in-place quicksort in Swift Beta: func quicksort_swift(inout a:CInt[], start:Int, end:Int) { if (end - start < 2){ ...
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How do you calculate program run time in python? [duplicate]

... I don't know if this is a faster alternative, but I have another solution - from datetime import datetime start=datetime.now() #Statements print datetime.now()-start ...
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What's the difference between a proc and a lambda in Ruby?

... I've been to God knows how many websites and articles by now and nobody seems to talk about the utility of Procs vs. methods vs. lambdas. Every explanation just provides a hair-splitting detail of how return values, etc., are different, but no...
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How does variable assignment work in JavaScript?

... example, you are assigning a brand new object. a = b = {}; a and b are now pointers to the same object. So when you do: a.foo = 'bar'; It sets b.foo as well since a and b point to the same object. However! If you do this instead: a = 'bar'; you are saying that a points to a different ob...
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :) – Thierry-Dimitri Roy Mar 11 '11 at 18:03 ...
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How can I make XSLT work in chrome?

...r containing a web page as an attachment, which you download. You open the now-local web page in your browser. The local web page creates an <iframe> whose source is https://mail.google.com/mail/. Because you are logged in to Gmail, the frame loads the messages in your inbox. The local web pag...
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How can I recognize touch events using jQuery in Safari for iPad? Is it possible?

...tically passed to the handler. For the safari browser (and android too) it now contains an array of all the touches the user has made on the screen. Each touch has its own properties (x,y coords for example) – David Pean Jan 21 '11 at 6:05 ...
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OAuth: how to test with local URLs?

... Update October 2016: Easiest now: use lvh.me which always points to 127.0.0.1. Previous Answer: Since the callback request is issued by the browser, as a HTTP redirect response, you can set up your .hosts file or equivalent to point a domain that is not ...
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How to disable typing special characters when pressing option key in Mac OS X? [closed]

Now when I press option-b, I will get ∫. I don't need to type special characters and need to map option-b to shortcuts to certains applications. Is there any way to do this? ...
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HTTP redirect: 301 (permanent) vs. 302 (temporary)

...not attempt to request the original location but use the new location from now on. Status 302 means that the resource is temporarily located somewhere else, and the client/browser should continue requesting the original url. ...