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Where is Xcode's build folder?

... ~/Library/Developer/Xcode/DerivedData is now the default. You can set the prefs in Xcode to allow projects to specify their build directories. share | improve this ...
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What do two question marks together mean in C#?

... Tangential but related: It's now in Swift, but it's very different: "Nil Coalescing Operator" developer.apple.com/library/ios/documentation/Swift/Conceptual/… – Dan Rosenstark Oct 14 '15 at 19:21 ...
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Anonymous recursive PHP functions

... Mind Blown! Thanks a lot! How did I not know about this till now? The amount of application I have for recursive anonymous functions is huge. Now I can finally loop through nested structures in layouts without having to explicitly define a method and keep all my lay...
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List or IList [closed]

...ays writeable and thus always keeps its promises. Also, since .NET 4.6, we now have IReadOnlyCollection<T> and IReadOnlyList<T> which are almost always better fits than IList<T>. And they are covariant. Avoid IList<T>! – ZunTzu Nov 10 '1...
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How do you work with an array of jQuery Deferreds?

...lice.call(arguments)); }); return deferred; } } Now you can simply pass in an array of deferreds/promises and get back an array of resolved/rejected objects in your callback, like so: $.when.all(promises).then(function(schemas) { console.log("DONE", this, schemas); /...
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What is the best way to unit test Objective-C code?

... Xcode 5 now has XCTest does it still include OCUnit? Will you update your answer with information for XCode 5. – BrightIntelDusk Mar 24 '14 at 22:48 ...
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You have already activated X, but your Gemfile requires Y

...is. Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get any warning when simply using rake. Yehuda Katz (one of the origi...
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How to inspect Javascript Objects

...t work out why I could no longer view the full object in Firebug. This has now sorted it for me. Thanks! – Andrew Newby Jul 1 '16 at 12:04 ...
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Case insensitive 'in'

...r() except: pass return self.__s == other Now, if CaseInsensitively('MICHAEL89') in whatever: should behave as required (whether the right-hand side is a list, dict, or set). (It may require more effort to achieve similar results for string inclusion, avoid warnings...
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]

...lly runs a short Bash script. That script, either directly or indirectly, knows where all the files needed are and sets variables and command line parameters, finally calling the program. That's a shell's simplest use. Linux as we know it however would hardly be Linux without the thousands of shell...