Is there a jQuery map utility that doesn't automically flatten?

Question

I\'m mapping an array of two-tuples from one domain (dates) to another (timestamps). Unfortunately, it looks like jQuery.map auto-flattens the two-tuples I return,

Answer 1

I'm not really sure what a "two-tuple" is and I'm not really sure I got it right from the Google results I looked at. But did you take a look at jQuery.each?