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What is the best algorithm for overriding GetHashCode?

...alue isn't a prime. (The multiplication constant is prime though. I don't know quite how important that is.) This is better than the common practice of XORing hashcodes for two main reasons. Suppose we have a type with two int fields: XorHash(x, x) == XorHash(y, y) == 0 for all x, y XorHash(x, y) ...
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How to find and return a duplicate value in array

... a = ["A", "B", "C", "B", "A"] a.detect{ |e| a.count(e) > 1 } I know this isn't very elegant answer, but I love it. It's beautiful one liner code. And works perfectly fine unless you need to process huge data set. Looking for faster solution? Here you go! def find_one_using_hash_map(arr...
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How to find day of week in php in a specific timezone

... Europe/Stockholm to the users time-zone. $dateTime = new \DateTime( 'now', new \DateTimeZone('Europe/Stockholm') ); $day = $dateTime->format('N'); ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0) 1 (for Monday) through 7 (for Sunday) http://php.net/ma...
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How to uninstall Python 2.7 on a Mac OS X 10.6.4?

...n.PythonProfileChanges-2.7 org.python.Python.PythonUnixTools-2.7 you can now select which packages you will unlink (remove). This is the unlink documentation: --unlink package-id Unlinks (removes) each file referenced by package-id. WARNING: This command makes no attempt to perfor...
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How to fix Error: laravel.log could not be opened?

...the folder belonged to the user in the real computer; so, when trying to Now it's working. Thanks to all those that helped me figure this thing out EDIT: Actually, it still wasn't working, it still gave me a "permission denied" problem. Here's what I did, I modified my Vagrantfile like this: ...
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Multiple “order by” in LINQ

...movies = _db.Movies.Orderby(c => c.Category).ThenBy(n => n.Name) if I use Var movies = _db.Movies.Orderby(c => c.Category).OrderBy(n => n.Name) 2 times "orderBy" why is the result different? – user545425 Jan 20 '11 at 16:44 ...
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How to include package data with setuptools/distribute?

...t to someone else to built the binary distribution. In any case, using MANIFEST.in will work both for binary and for source distributions. share | improve this answer | foll...
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Selenium c# Webdriver: Wait Until Element is Present

... This method is now deprecated, you should instead use the property ImplicitWait : Driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10); – Samuel Rondeau-Millaire Mar 31 '17 at 15:17 ...
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Test for existence of nested JavaScript object key

If I have a reference to an object: 57 Answers 57 ...
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Why does using an Underscore character in a LIKE filter give me all the results?

... Modify your WHERE condition like this: WHERE mycolumn LIKE '%\_%' ESCAPE '\' This is one of the ways in which Oracle supports escape characters. Here you define the escape character with the escape keyword. For details see th...