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What are best practices that you use when writing Objective-C and Cocoa? [closed]

I know about the HIG (which is quite handy!), but what programming practices do you use when writing Objective-C, and more specifically when using Cocoa (or CocoaTouch). ...
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Different ways of clearing lists

... Why the first one will only affect a? I thought a and b reference to the same object... Just wanna know why. Thanks. – Alston Nov 22 '14 at 9:48 ...
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How would I get a cron job to run every 30 minutes?

...to add a crontab entry to execute a script every 30 minutes, on the hour and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0. ...
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Determining if an Object is of primitive type

I have an Object[] array, and I am trying to find the ones that are primitives. I've tried to use Class.isPrimitive() , but it seems I'm doing something wrong: ...
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How to know if an object has an attribute in Python

...at, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will probably ...
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How do I create a namespace package in Python?

...aries as separate downloads. For example, with the directories Package-1 and Package-2 in PYTHONPATH , 5 Answers ...
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Does Django scale? [closed]

...e a list of Django sites on the front page of the main Django project page and then a list of Django built sites at djangosites.org. Going through the lists and picking some that I know have decent traffic we see: Instagram: What Powers Instagram: Hundreds of Instances, Dozens of Technologies. Pi...
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How to simulate Server.Transfer in ASP.NET MVC?

...3 httpContext.RewritePath(this.Url, false); IHttpHandler httpHandler = new MvcHttpHandler(); httpHandler.ProcessRequest(httpContext); } } } Updated: Now works with MVC3 (using code from Simon's post). It should (haven't been able to test it) also wo...
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Programmer Puzzle: Encoding a chess board state throughout a game

...e: I liked this topic so much I wrote Programming Puzzles, Chess Positions and Huffman Coding. If you read through this I've determined that the only way to store a complete game state is by storing a complete list of moves. Read on for why. So I use a slightly simplified version of the problem for ...
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Getting list of parameter names inside python function [duplicate]

Is there an easy way to be inside a python function and get a list of the parameter names? 4 Answers ...