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Objective-C ARC: strong vs retain and weak vs assign

... After reading so many articles Stackoverflow posts and demo applications to check variable property attributes, I decided to put all the attributes information together: atomic //default nonatomic strong=retain //default weak retain assign //default unsafe_un...
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How do you use variables in a simple PostgreSQL script?

...y available from the psql console. You won't be able to write this in your app's SQL. – owensmartin Jan 7 '16 at 23:13 ...
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Android emulator and virtualbox cannot run at same time

... My backend required for the app to have data runs on VirtualBox (Vagrant), so that's not a great option :P – Richard de Wit Nov 20 '15 at 11:46 ...
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WebClient vs. HttpWebRequest/HttpWebResponse

...the WebClient class. I read somewhere that WebClient is a high-level wrapper for WebRequest/Response . So far, I can't see anything that can be accomplished with HttpWebRequest/Response that can not be accomplished with WebClient , nor where HttpWebRequest/Response will give you more "fin...
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ASP.NET Identity DbContext confusion

A default MVC 5 App comes with this piece of code in IdentityModels.cs - this piece of code is for all the ASP.NET Identity operations for the default templates: ...
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Listing all extras of an Intent

... I just found out about Intent Intercept Android app. That works too. – Vinayak Mar 2 '15 at 14:36 1 ...
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Xcode 4 - “Archive” is greyed out?

I would like to archive my application, but the Archive option is greyed out. What could cause this? 4 Answers ...
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SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed

I am using Authlogic-Connect for third party logins. After running appropriate migrations, Twitter/Google/yahoo logins seem to work fine but the facebook login throws exception: ...
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How To Create a Flexible Plug-In Architecture?

... the use of or creation of an in-house plug-in architecture. I've seen it approached many ways - configuration files (XML, .conf, and so on), inheritance frameworks, database information, libraries, and others. In my experience: ...
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How to update Python?

... by bit-version I mean 64-bit vs. 32-bit. For example, these answers would apply to updating from 64-bit Python-2.7.10 to 64-bit Python-2.7.11, ie: the same bit-version. While it is possible to install two different bit versions of Python together, it would require some hacking, so I'll save that ex...