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CocoaPods Errors on Project Build

... it. If you go to the target's Build Settings and filter on All, you will now see the PODS_ROOT entry with no errors: It should now build with no errors. Note: Even Cocoa Pods' official AFNetworking iOS Example has this problem, which leads me to believe that it is a bug with Xcode. An alte...
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Java Enum definition

...e equivalent to: public class StatusCode extends Enum<StatusCode> Now if you check the constraints, we've got Enum<StatusCode> - so E=StatusCode. Let's check: does E extend Enum<StatusCode>? Yes! We're okay. You may well be asking yourself what the point of this is :) Well, it ...
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Interface vs Abstract Class (general OO)

... seems they are waiting for me to mention something specific, and I don't know what it is. 35 Answers ...
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Detect changes in the DOM

...age event queue var stack = []; function callback() { var now = +new Date(); if (now - last > delay) { for (var i = 0; i < stack.length; i++) { stack[i](); } last = now; } } // Public interface va...
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What is App.config in C#.NET? How to use it?

...nually change some <value> in app.config, save it and then close it. Now when I go to my bin folder and launch the .exe file from here, why doesn't it reflect the applied changes? A: When you compile an application, its app.config is copied to the bin directory1 with a name that matches your ...
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What is a non-capturing group in regular expressions?

...tp://stackoverflow.com/ https://stackoverflow.com/questions/tagged/regex Now, if I apply the regex below over it... (https?|ftp)://([^/\r\n]+)(/[^\r\n]*)? ... I would get the following result: Match "http://stackoverflow.com/" Group 1: "http" Group 2: "stackoverflow.com" Group 3...
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mongo - couldn't connect to server 127.0.0.1:27017

...ress 'Ctrl+c' or quit it.) Type the command to start mongo now in another window. Hope this works for you ! for those who want to repair your data files while preserving the original files mongo recover ...
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?

...ed, it's about time people start using it! And all brands of SQL database now support it, so there's no reason to continue to use the nonstandard (+) Oracle syntax or *= Microsoft/Sybase syntax. As for why it's so hard to break the developer community of the SQL-89 habit, I can only assume that th...
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Convert an image to grayscale in HTML/CSS

... Support for CSS filters has landed in Webkit. So we now have a cross-browser solution. img { filter: gray; /* IE6-9 */ -webkit-filter: grayscale(1); /* Google Chrome, Safari 6+ & Opera 15+ */ filter: grayscale(1); /* Microsoft Edge and Firefox 35+ */ } /*...
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala

...rList.foldLeft(0)(_ + _)) Took 2589.363031 milli seconds reduce vs fold Now this is where it gets a little closer to the FP / mathematical roots, and a little trickier to explain. Reduce is defined formally as part of the MapReduce paradigm, which deals with orderless collections (multisets), Fo...