Is the JavaScript RegExp implicit method deprecated?

Posted by Eric on Stack Overflow See other posts from Stack Overflow or by Eric
Published on 2010-06-17T00:02:44Z Indexed on 2010/06/17 0:12 UTC
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JavaScript

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regex

So everyone knows what I mean by "implicit methods"? They're like those default properties from the Windows COM days of yore, where you could type something like

val = obj(arguments)

and it would be interpreted as

val = obj.defaultMethod(arguments)

I just found out JavaScript has the same thing: the default method of a RegExp object appears to be 'exec', as in

/(\w{4})/('yip jump man')[1]
==> jump

This even works when the RegExp object is assigned to a variable, and even when it's created with the RegExp constructor, instead of /.../, which is good news to us fans of referential transparency.

Where is this documented, and/or is it deprecated?

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