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Alex Rivera
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Let's say that I've got a page which extracts some image sources like so: <div id="d"> <img src="foo.gif"/> <img src="bar.gif"/> <img src="gah.gif"/> </div> <script type="text/javascript"> var srcs = $('div#d > img').map(function(){return this.src}); // srcs => ['foo.gif', 'bar.gif', 'gah.gif'] </script> Note that srcs is not a JavaScript Array but an array-like object; we know this because of the fact that we can make jQuery API calls on objects returned by the selector and the fact that srcs.constructor != Array . The jQuery API provides a .get() method which, when given no argument, returns a "standard" Array. Is there a compelling reason to use a standard Array instead of an array-like object or is this method just included for completeness? [Edit] To put it another way - what are the differences between a JavaScript Array and the array-like object returned by a jQuery selector?
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