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Some questions about Automatic Reference Counting in iOS5 SDK

...k will be completed) for iOS 4.3. I just read about ARC in iOS 5, and basically I understood that we will never need to release and retain objects anymore. My questions are: ...
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Pry: show me the stack

... Use the pry-stack_explorer plugin, it allows you to move up and down the call-stack (with up and down), display the callstack (with show-stack), and so on: see here: Frame number: 0/64 From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/pos...
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

...ms instead of programming. Recently, I have been following a manual to install a software suite on Ubuntu. I have no knowledge of mySQL at all, actually. I have done the following installations on my Ubuntu. ...
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How to declare a global variable in a .js file

I need a few global variables that I need in all .js files. 5 Answers 5 ...
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How to make join queries using Sequelize on Node.js

...ok a bit complicated compared to what you posted, but what it does is basically just aliasing all columns of the users table to make sure they are placed into the correct model when returned and not mixed up with the posts model Other than that you'll notice that it does a JOIN instead of selecting...
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Convert UTC to local time in Rails 3

...mes. See them with: rake time:zones:us You can also run rake time:zones:all for all time zones. To see more zone-related rake tasks: rake -D time So, to convert to EST, catering for DST automatically: Time.now.in_time_zone("Eastern Time (US & Canada)") ...
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Xcode 4.5 Storyboard 'Exit'

I have just installed Xcode 4.5 for iOS6 support, and I have seen a new icon called 'Exit' in my Storyboard, listed under my view controllers along with 'First Responder' etc. A little green icon labeled 'Exit'. ...
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Simple proof that GUID is not unique [closed]

...(OutOfMemoryException) { // Release the ram we allocated up front. // Actually, these are pointless too. //GC.KeepAlive(reserveSomeRam); //GC.Collect(); } Console.WriteLine("{0:u} - Built bigHeapOGuid...
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How does Java handle integer underflows and overflows and how would you check for it?

... long or maybe java.math.BigInteger. The last one doesn't overflow, practically, the available JVM memory is the limit. If you happen to be on Java8 already, then you can make use of the new Math#addExact() and Math#subtractExact() methods which will throw an ArithmeticException on overflow. pub...
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane

...ng the window layout and see if that fixes it. First, Window -> Close All Documents Then, Window -> Reset Window Layout Exit VS to be sure, then go back in. share | improve this answer ...