map() example

[benjamincochran]

YUI has a less cumbersome map feature than the example, that isn't restricted to nodes:

// Convert an array of numbers into an array of strings.
Y.Array.map([1, 2, 3, 4], function (item) {
  return '' + item;
});
// => ['1', '2', '3', '4']

So in the context of the example given, this could be a one-liner:

Y.Array.map(Y.all('a').getDOMNodes(), some_function);

[rgrove]

Thanks! Care to turn this into a pull request?