jQuery $.each(arr, foo) versus $(arr).each(foo)

Posted by Brian M. Hunt on Stack Overflow See other posts from Stack Overflow or by Brian M. Hunt
Published on 2010-06-08T12:41:05Z Indexed on 2010/06/08 12:42 UTC
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In jQuery, what's the difference between the following two constructions of jQuery.each:

// Given
var arr = [1,2,3,4],
    results = [],
    foo = function (index, element) { 
       /* something done to/with each element */
       results.push(element * element); // arbitrary thing.
    }

// construction #1
$.each(arr, foo); // results = [1,4,9,16]

// construction #2
$(arr).each(foo); // results = [1,4,9,16]

Is there any difference, or is it purely syntax?

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