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Passing Data between View Controllers

I'm new to iOS and Objective-C and the whole MVC paradigm and I'm stuck with the following: 46 Answers ...
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Avoiding SQL injection without parameters

...ametrized sql queries in our code. We have two sides in the discussion: Me and some others that say we should always use parameters to safeguard against sql injections and the other guys that don't think it is necessary. Instead they want to replace single apostrophes with two apostrophes in all str...
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Android Fragments. Retaining an AsyncTask during screen rotation or configuration change

I'm working on a Smartphone / Tablet app, using only one APK, and loading resources as is needed depending on screen size, the best design choice seemed to be using Fragments via the ACL. ...
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Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no

... I want to do : run a background thread which calculates ListView contents and update ListView partially, while results are calculated. ...
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In pure functional languages, is there an algorithm to get the inverse function?

...n algorithm to get the inverse of a function, (edit) when it is bijective? And is there a specific way to program your function so it is? ...
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How do I tell Maven to use the latest version of a dependency?

... NOTE: This answer applies to Maven 2 only! The mentioned LATEST and RELEASE metaversions have been dropped in Maven 3 "for the sake of reproducible builds", over 6 years ago. Please refer to this Maven 3 compliant solution. If you always want to use the newest version, Maven has two k...
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Delete all local changesets and revert to tree

I'm using Mercurial and I've got into a terrible mess locally, with three heads. I can't push, and I just want to delete all my local changes and commits and start again with totally clean code and a clean history. ...
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Localization and internationalization, what's the difference?

... Some other reasons to think of them separately: Internationalization QA and localization QA have different test cases, Internationalization is a one-time cost (more or less), and so the more languages you localize to, the higher your ROI. i18n is generally more costly than l10n to any one locale....
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How does TestFlight do it?

...they will start some kind of premium offering in the future. It's free now and the new SDK is really impressive. It can gather crash logs and usage information directly from your test clients and even symbolicate them if you are comfortable uploading your dsyms. – Nick ...
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What is android:weightSum in android, and how does it work?

I want to know: What is android:weightSum and layout weight, and how do they work? 9 Answers ...