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What is the difference between HashSet and List?

...hSet is a List with no duplicate members. Because a HashSet is constrained to contain only unique entries, the internal structure is optimised for searching (compared with a list) - it is considerably faster Adding to a HashSet returns a boolean - false if addition fails due to already existing in S...
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The following sections have been defined but have not been rendered for the layout page “~/Views/Sha

I'm new to ASP MVC and utilizing the Intro to ASP MVC 4 Beta tutorial http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/intro-to-aspnet-mvc-4 ...
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What are the differences between poll and select?

I am referring to the POSIX standard select and poll system C API calls. 3 Answers ...
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How to get file creation & modification date/times in Python?

I have a script that needs to do some stuff based on file creation & modification dates but has to run on Linux & Windows . ...
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PHP - Get bool to echo false when false

...nefit. I've been programming for 20+ years and never have I wanted 'false' to auto-convert to blank.. null many times, but never 'false'. My Java/Spring/Hibernate development is so so so much cleaner & stronger than even modest PHP systems. I could find plenty of people who were confused.. stack...
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push multiple elements to array

I'm trying to push multiple elements as one array, but getting error 9 Answers 9 ...
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Does Javascript pass by reference? [duplicate]

...emove it from the function parameter, the inside area function is not able to access it. 13 Answers ...
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Current time in microseconds in java

On a Unix system, is there a way to get a timestamp with microsecond level accuracy in Java? Something like C's gettimeofday function. ...
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Entity Framework - Invalid Column Name '*_ID"

I've narrowed this down to some issue between Code First and Database first EF, but I'm not sure how to fix it. I'll try to be as clear as I can, but I honestly am missing some of the understanding here myself. This is Entity Framework 4.4 ...
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How to fix “Incorrect string value” errors?

After noticing an application tended to discard random emails due to incorrect string value errors, I went though and switched many text columns to use the utf8 column charset and the default column collate ( utf8_general_ci ) so that it would accept them. This fixed most of the errors, and made ...