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Why does Java's hashCode() in String use 31 as a multiplier?

...odrich and Tamassia computed from over 50,000 English words (formed as the union of the word lists provided in two variants of Unix) that using the constants 31, 33, 37, 39, and 41 will produce fewer than 7 collisions in each case. This may be the reason that so many Java implementations choose such...
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Numpy `logical_or` for more than two arguments

...or function takes no more than two arrays to compare. How can I find the union of more than two arrays? (The same question could be asked with regard to Numpy's logical_and and obtaining the intersection of more than two arrays.) ...
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EditorFor() and html properties

Asp.Net MVC 2.0 preview builds provide helpers like 20 Answers 20 ...
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How do I create multiple submit buttons for the same form in Rails?

... is supported across all browsers w3schools.com/tags/att_button_formaction.asp w3schools.com/tags/att_input_formaction.asp – Sumit Garg May 13 '16 at 18:02 ...
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jquery.validate.unobtrusive not working with dynamic injected elements

I am working with ASP.Net MVC3 , the easier way to use the client validation would be enabling the jquery.validate.unobtrusive . Everything works fine, for stuff that's right from server. ...
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How to write “Html.BeginForm” in Razor

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How is null + true a string?

...for the operation operator op(x, y) is determined. The set consists of the union of the candidate operators provided by X and the candidate operators provided by Y, each determined using the rules of §7.3.5. If X and Y are the same type, or if X and Y are derived from a common base type, then share...
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The requested resource does not support HTTP method 'GET'

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What is [Serializable] and when should I use it?

... actions like sending the object to a remote application by means of a Web Service, passing an object from one domain to another, passing an object through a firewall as an XML string, or maintaining security or user-specific information across applications. Apply SerializableAttribute to a type to ...
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Getting current directory in .NET web application

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