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Version vs build in Xcode

I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the vers...
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What do 'real', 'user' and 'sys' mean in the output of time(1)?

What do 'real', 'user' and 'sys' mean in the output of time? 6 Answers 6 ...
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'Must Override a Superclass Method' Errors after importing a project into Eclipse

... Eclipse is defaulting to Java 1.5 and you have classes implementing interface methods (which in Java 1.6 can be annotated with @Override, but in Java 1.5 can only be applied to methods overriding a superclass method). Go to your project/IDE preferences and s...
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What is the difference between LR, SLR, and LALR parsers?

What is the actual difference between LR, SLR, and LALR parsers? I know that SLR and LALR are types of LR parsers, but what is the actual difference as far as their parsing tables are concerned? ...
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images

...on.js through canvas operations. Hope this saves somebody else some time, and teaches the search engines about this open source gem :) share | improve this answer | follow ...
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User recognition without cookies or local storage

I'm building an analytic tool and I can currently get the user's IP address, browser and operating system from their user agent. ...
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How can I strip first and last double quotes?

... If the quotes you want to strip are always going to be "first and last" as you said, then you could simply use: string = string[1:-1] share | improve this answer | ...
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How do Python's any and all functions work?

I'm trying to understand how the any() and all() Python built-in functions work. 8 Answers ...
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What is the bower (and npm) version syntax?

... In a nutshell, the syntax for Bower version numbers (and NPM's) is called SemVer, which is short for 'Semantic Versioning'. You can find documentation for the detailed syntax of SemVer as used in Bower and NPM on the API for the semver parser within Node/npm. You can learn more...
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How to write the Fibonacci Sequence?

... There is lots of information about the Fibonacci Sequence on wikipedia and on wolfram. A lot more than you may need. Anyway it is a good thing to learn how to use these resources to find (quickly if possible) what you need. Write Fib sequence formula to infinite In math, it's given in a recurs...