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switch / pattern matching idea

...tern match, and it instantly makes sense. The "problem" is that once you start using some functional concepts, it's natural to want to continue. However, leveraging tuples, functions, partial method application and currying, pattern matching, nested functions, generics, monad support, etc. in C# g...
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What is the maximum size of a web browser's cookie's key?

... Storage (Second Edition)" is the API and "HTML5 Local Storage" is a quick start. share | improve this answer | follow | ...
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How can I create directory tree in C++/Linux?

... in this code that I actually hit. It only happens when multiple programs start up simultaneously and make the same folder path. The fix is to add if (errno != EEXIST) { status = -1; } when mkdir fails. – Switch Jul 14 '12 at 23:57 ...
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java

...specified, and g (defined with java.lang.Object) would cause auto-boxing. Starting with Scala 2.10.0, though, the user can extend AnyVal or Any, with the following semantics: If a class extends AnyVal, no instance will be created for it on the heap under certain conditions. This means the fields ...
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How to parse a string to an int in C++?

...ow you have to check for a leading zero. But wait! Hexadecimal numbers can start with a leading zero too (0x...). Sigh. Even if you succeed in dealing with the above problems, there is still another bigger problem: what if the caller needs to distinguish between bad input (e.g. "123foo") and a numb...
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Where can I learn how to write C code to speed up slow R functions? [closed]

...unfortunately, I don't have specific resources in mind to help you getting started on C++. I picked it up from Scott Meyers's books (Effective C++, More effective C++, etc ...) but these are not really what one could call introductory. We almost exclusively use the .Call interface to call C++ code...
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npm install vs. update - what's the difference?

...s module and its dependencies. npm update express updates express module (starting with npm@2.x, it doesn't update its dependencies). So updates are for when you already have the module and wish to get the new version. sha...
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How to apply a CSS filter to a background image

...019. Update (01/06/2019): The Mozzilla Firefox team has announced it will start working on implementing this soon. Update (21/05/2019): Chromium just announced backdrop-filter is available in chrome canary without enabling "Enable Experimental Web Platform Features" flag. This means backdrop-filte...
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How do I get currency exchange rates via an API such as Google Finance? [closed]

Now, I did find the Google Finance API and started looking through that but I found a lot of info about portfolios, transactions, positions & other stuff I know nothing about. ...
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What is the difference between ? and Object in Java generics?

... don't use a wildcard when you both get and put. and the wild card may start making more sense, hopefully. share | improve this answer | follow | ...