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How do I parse JSON with Objective-C?

...m new to iPhone. Can anyone tell me the steps to follow to parse this data and get the activity details, first name, and last name? ...
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What is the Difference Between Mercurial and Git?

I've been using git for some time now on Windows (with msysGit) and I like the idea of distributed source control. Just recently I've been looking at Mercurial (hg) and it looks interesting. However, I can't wrap my head around the differences between hg and git. ...
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Why call git branch --unset-upstream to fixup?

...topress is not under any development since 2011, it serves my purpose well and so I haven't thought of changing anything so far. ...
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When would I need a SecureString in .NET?

...to the Swap file or in core dumps. The encryption is more like obfuscation and won't stop a determined hacker, though, who would be able to find the symmetric key used to encrypt and decrypt it. As others have said, the reason you have to create a SecureString character-by-character is because of t...
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How does password salt help against a rainbow table attack?

I'm having some trouble understanding the purpose of a salt to a password. It's my understanding that the primary use is to hamper a rainbow table attack. However, the methods I've seen to implement this don't seem to really make the problem harder. ...
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What is the relationship between Looper, Handler and MessageQueue in Android?

I have checked the official Android documentation/guide for Looper , Handler and MessageQueue . But I couldn't get it. I am new to android, and got very confused with these concepts. ...
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Importing CommonCrypto in a Swift framework

... Something a little simpler and more robust is to create an Aggregate target called "CommonCryptoModuleMap" with a Run Script phase to generate the module map automatically and with the correct Xcode/SDK path: The Run Script phase should contain thi...
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Can I Replace Apache with Node.js?

... have a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wo...
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Android Archive Library (aar) vs standard jar

I've been reading some articles about the new adoption of Gradle as the standard build system for Android apps. Well, coming from standard Java development I usually depend on jar files in order to build my project. However it seems that Android has also aar packages, which are the equivalent to...
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP

...ar-PYTHONPATH What you're looking for is PATH. export PATH=$PATH:/home/randy/lib/python However, to run your python script as a program, you also need to set a shebang for Python in the first line. Something like this should work: #!/usr/bin/env python And give execution privileges to it: ...