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Iterate through object properties

...roperty simply checks to see if this is a property specific to this class, and not one inherited from the base class. It's also possible to call hasOwnProperty through the object itself: if (obj.hasOwnProperty(prop)) { // do stuff } But this will fail if the object has an unrelated field w...
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presentViewController:animated:YES view will not appear until user taps again

... I've encountered the same issue today. I dug into the topic and it seems that it's related to the main runloop being asleep. Actually it's a very subtle bug, because if you have the slightest feedback animation, timers, etc. in your code this issue won't surface because the runloop ...
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How to check programmatically if an application is installed or not in Android?

...am getting a exception "java.lang.RuntimeException: Adding window failed" and " E/AndroidRuntime(7554): Caused by: android.os.TransactionTooLargeException 05-14 11:37:25.305: E/AndroidRuntime(7554): at android.os.BinderProxy.transact(Native Method) 05-14 11:37:25.305: E/AndroidRuntime(7554): at...
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What and When to use Tuple? [duplicate]

May someone please explain what a Tuple is and how to use it in a Real World Scenario. I would like to find out how this can enrich my coding experience? ...
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Set up Heroku and GoDaddy? [closed]

... the same problem can fix it too. First I will explain how to setup Heroku and GoDaddy, then I will explain how to create a naked domain (www.example.com -> example.com). Setup Heroku and GoDaddy: In your project folder in terminal (on your computer) write heroku domains:add www.example.com (w...
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Ruby on Rails: How can I revert a migration with rake db:migrate?

... Run the following command rake db:migrate:down VERSION=<version> where <version> is the version number of your migration file you want to revert. eg. if you want to revert a migration with file name 3846656238_create_users.rb r...
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Zero-pad digits in string

...st single figures (1 to 9) to (01 to 09). I can think of a way but its big and ugly and cumbersome. I'm sure there must be some concise way. Any Suggestions ...
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HorizontalAlignment=Stretch, MaxWidth, and Left aligned at the same time?

... You can set HorizontalAlignment to Left, set your MaxWidth and then bind Width to the ActualWidth of the parent element: <Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <StackPanel Name="C...
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Having links relative to root?

...te the W3's example: For example, given the following BASE declaration and A declaration: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <HTML> <HEAD> <TITLE>Our Products</TITLE> <BASE href="http://www.aviar...
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CABasicAnimation resets to initial value after animation completes

I am rotating a CALayer and trying to stop it at its final position after animation is completed. 15 Answers ...