To perform an operation on each of the key/value pairs in a map

Use the [map->forEachPair] method. In this example a table of the key/value pairs of the 'colours' map.

Code

var (colours = map( 'red'='#ff0000',
                     'green' = '#00ff00',
                     'blue' = '#0000ff',
                     'grey' = '#aaaaaa') )

'<table border="1">'
$colours->forEachPair => {^
    '<tr>
         <td>'+#1->first+'</td>
         <td>'+#1->second+'</td>
     </tr>'
^}
'</table>'

Result

         
blue
         
#0000ff
     

         
green
         
#00ff00
     

         
grey
         
#aaaaaa
     

         
red
         
#ff0000