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How to convert a string into double and vice versa?

... Double is a numeric data type - it does not contain any formatting. Calling [NSString doubleValue] would return 1000 because it's just a number. – Andy Oct 5 '08 at 12:53 12 ...
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How do I shuffle an array in Swift?

How do I randomize or shuffle the elements within an array in Swift? For example, if my array consists of 52 playing cards, I want to shuffle the array in order to shuffle the deck. ...
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How to get current relative directory of your Makefile?

...t work when there is a space in the relative path of the makefile. Specifically, $(lastword "$(MAKEFILE_LIST)") of a makefile at path "Sub Directory/Makefile" will give you "Directory/Makefile". I dont think there is any way around this since $(MAKEFILE_LIST) with two makefiles gives you a single st...
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In C++, what is a virtual base class?

..." diagram is confusing, although it seems to be commonly used. This is actually a diagram showing class inheritance relationships -- not an object layout. The confusing part is that if we do use virtual, then the object layout looks like the diamond; and if we do not use virtual then the object la...
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View/edit ID3 data for MP3 files

...roperties (FirstArtist, Artist, JointedArtists, FirstPerformer) and almost all of them are read-only or deprecated... – Laserson Oct 14 '10 at 17:24 3 ...
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“User interaction is not allowed” trying to sign an OSX app using codesign

...t-click, choose Get Info, change to the Access Control tab and select the "Allow all applications to access this item". share | improve this answer | follow ...
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What is the difference between a 'closure' and a 'lambda'?

... function definition is re-written as binding a lambda to a variable internally. In other languages, like Python, there are some (rather needless) distinctions between them, but they behave the same way otherwise. A closure is any function which closes over the environment in which it was defined. ...
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What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?

... good explanations on what argument dependent lookup is? Many people also call it Koenig Lookup as well. 4 Answers ...
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In Intellij, how do I toggle between camel case and underscore spaced?

... I use a plugin called String Manipulation which has the capabilities you're looking for (and more). Select historyOfPresentIllness and press Alt+M to bring up the plugin menu, then press: 5 - To snake_case (or to camelCase) which convert...
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Check if a user has scrolled to the bottom

...ight of the visible window and checks if that equals the height of the overall content (document). If you wanted to instead check if the user is near the bottom, it'd look something like this: $(window).scroll(function() { if($(window).scrollTop() + $(window).height() > $(document).height() ...