If you don't mind destroying @foo and @bar in the process.... 
push @foobar, shift(@foo) + shift(@bar) while @foo || @bar;

[download]
(you could use temporary copies of @foo and @bar to avoid losing them in the calculation)

-Blake

In reply to Re: Summing the elements of multiple arrays into a new array by blakem
in thread Summing the elements of multiple arrays into a new array by djw

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