> map('x*x', [1,2,3,4]) Although it's longer, I think I prefer: map([1,2,3,4], function (num){ return num + 1; }); .. which is how our in-house functional

> map('x*x', [1,2,3,4]) Although it's longer, I think I prefer: map([1,2,3,4], function (num){ return num + 1; }); .. which is how our in-house functional javascript library does it.