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Real-world examples of recursion [closed]

...erson who has contracted a given contageous infection, which is non fatal, and fixes itself quickly( Type A) , Except for one in 5 people ( We'll call these type B ) who become permanently infected with it and shows no symptoms and merely acts a spreader. This creates quite annoying waves of havoc...
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How to check if an object is an array?

...Array.isArray(obj) (Supported by Chrome 5, Firefox 4.0, IE 9, Opera 10.5 and Safari 5) For backward compatibility you can add the following # only implement if no native implementation is available if (typeof Array.isArray === 'undefined') { Array.isArray = function(obj) { return Object.pr...
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How do you print out a stack trace to the console/log in Cocoa?

...his question was originally asked. For pre-Snow-Leopard, use the backtrace and backtrace_symbols functions; see the backtrace(3) manpage. – Peter Hosey Feb 25 '10 at 13:32 ...
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Get and Set a Single Cookie with Node.js HTTP Server

I want to be able to set a single cookie, and read that single cookie with each request made to the nodejs server instance. Can it be done in a few lines of code, without the need to pull in a third party lib? ...
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Xcode is not currently available from the Software Update server

... You can download the command line tools for OS X Mavericks manually from here: https://developer.apple.com/downloads/index.action?name=for%20Xcode share | ...
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Difference between map and collect in Ruby?

I have Googled this and got patchy / contradictory opinions - is there actually any difference between doing a map and doing a collect on an array in Ruby/Rails? ...
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Error installing libv8: ERROR: Failed to build gem native extension

...e an error similar to what I was getting before with libv8 "make sure such and such succeeds before bundling" but when I try to run 'gem install therubyracer' I get "Failed to build gem native extension." error – sixty4bit Jan 14 '15 at 3:45 ...
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How to find the mime type of a file in python?

...stance in BLOBs. Let's say you want to dish these files out via a web page and have the client automatically open the correct application/viewer. ...
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Updating Bootstrap to version 3 - what do I have to do?

I'm new to Bootstrap and have the older version 2.3.2. 8 Answers 8 ...
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Modulo operation with negative numbers

... Should the compiler be smart enough and detect that an unsigned modulo another unsigned is always positive? Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_...