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RabbitMQ and relationship between channel and connection
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Lovisa Johansson
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answered Aug 24 '13 at 14:07
BengtBengt
3,...
Regular expressions in an Objective-C Cocoa application
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edited Aug 19 '13 at 15:20
Mr. DOS
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answered Aug 24 '10 a...
What are the applications of binary trees?
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434
To squabble about the performance of binary-trees is meaningless - they are not a data structur...
iOS 5 Best Practice (Release/retain?)
... basis. See pixelfreak's answer. So, my advice still stands, but now the 3rd-party libraries shouldn't need to be updated to work with ARC.
Here's what Apple says about opting out of ARC for specific files:
When you migrate a project to use ARC, the -fobjc-arc compiler flag is
set as the de...
How to simulate a click with JavaScript?
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431
Here's what I cooked up. It's pretty simple, but it works:
function eventFire(el, etype){
if...
Finding all possible permutations of a given string in python
...ations('stacks')]
>>> len(perms)
720
>>> len(set(perms))
360
Thanks to @pst for pointing out that this is not what we'd traditionally think of as a type cast, but more of a call to the set() constructor.
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Why is my program slow when looping over exactly 8192 elements?
...transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
Matrix multiplication: Small difference in matrix size, large difference in timings
But that's only because there's one other problem with the code.
Starting from the original loop:
for(i=1;i<SIZE-1;i++)
fo...
What does !! mean in ruby?
...f data from being returned. For example you probably don't want to return 3MB of image data in your has_image? method, or you may not want to return your entire user object in the logged_in? method. Using !! converts these objects to a simple true/false.
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How can I do an UPDATE statement with JOIN in SQL Server?
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edited Mar 10 at 3:56
Shelvacu
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answered Aug 18 '09 at...