whether object type in JavaScript is primitive type

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whether object type in JavaScript is primitive type?
because object type in .net is a primitive type.
in JavaScript there is a object class,whether object type wrapped to in class(object)?
if yes thus object is a primitive type where are reference(Like c#)

i read where all of primitive type in JavaScript wrapped to a object.
(javaScript definitive guide book)

Posted 2-Feb-12 3:25am

User 7427435

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ZurdoDev 2-Feb-12 9:32am

Is there a question somewhere?

[no name] 2-Feb-12 9:34am

whether object in js consist of primitive types?

Sergey Alexandrovich Kryukov 2-Feb-12 14:40pm

Oh man! Where did you get this weird information?
--SA

Rajesh Anuhya 2-Feb-12 21:08pm

Confused.

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-02-02T08:39:00

The question is incorrect in principle because JavaScript is interpretive language using loose typing (dynamic, weak, duck typing discipline).

Please see http://en.wikipedia.org/wiki/JavaScript[^].

There is no a concept of a primitive type in JavaScript. More exactly, the way of interpretation of "bare" integer or Boolean values (they only exist explicitly as the result of Boolean operations) is implementation-dependent. In a way, it does not matter, because there is no such thing as a type of a variable. But "all of primitive type in JavaScript wrapped to a object" is generally not true, at least from the standpoint of JavaScript developer. You can find it out writing something like value = 13 and examining value under Debugger. By the way, all "complex" JavaScript objects are merely the associative arrays: http://www.quirksmode.org/js/associative.html[^].

Don't mix it up with .NET boxing, which is also not something which "always" happen. :-)

Object type in C# is not a primitive type, and C# and JavaScript methods never call each other. If you have such illusion, this is maybe only because C# methods generate some text of some JavaScript code on the server side, parametrize generation of text to insert same values calculated on the server side, but ultimately everything is done just through generation of code text and nothing else. This is how ASP.NET works with JavaScript. There is nothing else. There is no point in comparison these two languages.

—SA