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Visual Studio C# statement collapsing

... 2012 (@MSDN) C# outline 2013 (@MSDN) C# outline 2015 (@MSDN) Visual Basic and C# Outliner The last extension supports only VS 2015 and VS 2017, but it's the most powerful one. It supports syntax coloring inside collapsed blocks, it is more fault-tolerant and optimized. If the extension doesn'...
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Comparing two dataframes and getting the differences

... lists, to do it efficiently we should first order them then compare them (converting the list to sets/hashing would also be fast; both are an incredible improvement to the simple O(N^2) double comparison loop Note: the following code produces the tables: df1=pd.DataFrame({ 'Date':['2013-11-24...
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How do you find out the type of an object (in Swift)?

...ped optionals! i.e. var myVar: SomeType!. Compiler gives the error "Cannot convert value of type 'SomeType!.Type' (aka 'ImplicitlyUnwrappedOptional<SomeType>.Type') to expected argument type 'AnyClass' (aka 'AnyObject.Type') Compiler suggest adding as! AnyClass after the type but then program...
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How can I beautify JavaScript code using Command Line?

...cutefoo.js uglify uses spaces for indentation by default so if I want to convert the 4-space-indentation to tabs I can run it through unexpand which Ubuntu 12.04 comes with: unexpand --tabs=4 cutefoo.js > cuterfoo.js Or you can do it all in one go: uglifyjs foo.js --beautify | unexpan...
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XmlSerializer - There was an error reflecting type

... [Serializable] attribute on it. I am creating an XMLSerializer class and passing that into the constructor: 18 Answer...
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How do I implement IEnumerable

...yList, you'll find that the List<MyObject> will provide both generic and non-generic enumerators that you can use. using System.Collections; class MyObjects : IEnumerable<MyObject> { List<MyObject> mylist = new List<MyObject>(); public MyObject this[int index] ...
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How do I implement an Objective-C singleton that is compatible with ARC?

How do I convert (or create) a singleton class that compiles and behaves correctly when using automatic reference counting (ARC) in Xcode 4.2? ...
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C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p

C++11 introduced a standardized memory model, but what exactly does that mean? And how is it going to affect C++ programming? ...
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Difference between freeze and seal

...rn false It makes every existing property non-configurable: they cannot be converted from 'data descriptors' to 'accessor descriptors' (and vice versa), and no attribute of accessor descriptors can be modified at all (whereas data descriptors can change their writable attribute, and their value attr...
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Order of event handler execution

If I set up multiple event handlers, like so: 10 Answers 10 ...