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When should I release objects in -(void)viewDidUnload rather than in -dealloc?

...ontroller means that even when its view is removed from the view hierarchy and released to save memory, through which the subviews are also released by the view, they will not actually be deallocated because the UIViewController itself still contains its own outstanding retaining references to those...
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Detecting a mobile browser

...m detectmobilebrowsers.com): Here's a function that uses an insanely long and comprehensive regex which returns a true or false value depending on whether or not the user is browsing with a mobile. window.mobileCheck = function() { let check = false; (function(a){if(/(android|bb\d+|meego).+mob...
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Having Django serve downloadable files

...the path to the file (or the file itself), but the actual file serving is handled by Apache/Lighttpd. Once you've set up mod_xsendfile, integrating with your view takes a few lines of code: from django.utils.encoding import smart_str response = HttpResponse(mimetype='application/force-download') #...
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How to get everything after last slash in a URL?

... You don't need fancy things, just see the string methods in the standard library and you can easily split your url between 'filename' part and the rest: url.rsplit('/', 1) So you can get the part you're interested in simply with: url.rsplit('/', 1)[-1] ...
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How do I commit case-sensitive only filename changes in Git?

...etter, as in Name.jpg to name.jpg . Git does not recognize this changes and I had to delete the files and upload them again. Is there a way that Git can be case-sensitive when checking for changes in file names? I have not made any changes to the file itself. ...
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Location Services not working in iOS 8

...d in Info.plist? Iam not able to see that key in my Info.plist. I added it and still it does not seem to work. I am using Swift, iOS8 and XCode 6 beta 4 – A B Vijay Kumar Aug 3 '14 at 4:06 ...
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What is the meaning of “POSIX”?

What is POSIX? I have read the Wikipedia article and I read it every time I encounter the term. The fact is that I never really understood what it is. ...
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How to make an Android device vibrate?

I wrote an Android application. Now, I want to make the device vibrate when a certain action occurs. How can I do this? 13 ...
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How can I get a list of locally installed Python modules?

...is solution applies to the system scope or to a virtual environment scope, and covers packages installed by setuptools, pip and (god forbid) easy_install. My use case I added the result of this call to my flask server, so when I call it with http://example.com/exampleServer/environment I get the l...
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Java system properties and environment variables

What's the difference between system properties System.getProperties() and environment variables System.getenv() in a JVM? ...