()(), what does it mean?

[exoplast]

google adsense code uses ()() as its main body.

http://pagead2.googlesyndication.com/pagead/show_ads.js (i have used
http://www.prettyprinter.de to simply the code)

( function() {} )()

what kind of syntax is it? is it a function call?

thanks

 

[Lee]

(e-mail address removed) said:

google adsense code uses ()() as its main body.

http://pagead2.googlesyndication.com/pagead/show_ads.js (i have used
http://www.prettyprinter.de to simply the code)

( function() {} )()

what kind of syntax is it? is it a function call?

The expression inside the first pair of parentheses evaluates
to a function reference, the second pair are the function
invocation operator, so together it defines a function and
invokes it.


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