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How to get the first element of an array?

...x of 0. You know what they say about assumption... – Andy Aug 9 '15 at 16:19 16 @Andy There were...
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What is the difference between Google App Engine and Google Compute Engine?

...ine is a Platform-as-a-Service. It means that you simply deploy your code, and the platform does everything else for you. For example, if your app becomes very successful, App Engine will automatically create more instances to handle the increased volume. Read more about App Engine Compute Engine ...
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Checking if an Android application is running in the background

... completely reliable: The right solution (credits go to Dan, CommonsWare and NeTeInStEiN) Track visibility of your application by yourself using Activity.onPause, Activity.onResume methods. Store "visibility" status in some other class. Good choices are your own implementation of the Application o...
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Difference between Pig and Hive? Why have both? [closed]

...y background - 4 weeks old in the Hadoop world. Dabbled a bit in Hive, Pig and Hadoop using Cloudera's Hadoop VM. Have read Google's paper on Map-Reduce and GFS ( PDF link ). ...
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Default background color of SVG root element

...ser solution currently would be to stick a <rect> element with width and height of 100% and fill="red" as the first child of the <svg> element, for example: <rect width="100%" height="100%" fill="red"/> s...
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javax vs java package

What's the rationale behind the javax package? What goes into java and what into javax? 7 Answers ...
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Responsive image map

.../github.com/davidjbradshaw/imagemap-resizer No major browsers understand percentage coordinates correctly, and all interpret percentage coordinates as pixel coordinates. http://www.howtocreate.co.uk/tutorials/html/imagemaps And also this page for testing whether browsers implement http:/...
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How to tell when UITableView has completed ReloadData?

...nvestigation, I find that the table view sends tableView:numberOfSections: and tableView:numberOfRowsInSection: to its data source before returning from reloadData. If the delegate implements tableView:heightForRowAtIndexPath:, the table view also sends that (for each row) before returning from rel...
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How do I install from a local cache with pip?

...irtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache? ...
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How can I link to a specific glibc version?

...f glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11... 4 Ans...