Perform an operation on each element of a pair

This example uses the [pair->forEach] method to return the size of each element in the pair.

Code

var( aPair = pair('First', 'Second') )

$aPair->forEach => {^
     #1+' is '+#1->size+' letters long\n'
^}

Result

First is 5 letters long
Second is 6 letters long