velocity - How to construct dynamic variable NAMES? -

i want loop on data, , create dynamic maps can later push more data into. example:

#foreach ($item in ["bob","john","andy"])   #set(${item}_map = {}) #end 

so later can this:

$!bob_map.put("${foreach.count}", "${some_data}") 

i do:

#foreach ($item in ["bob","john","andy"])   <div id="${item}_map" ></div> #end 

so later can in js:

<script> var map;  function initmap() {   map = new google.maps.map(document.getelementbyid('bob_map'), {     center: {lat: -34.397, lng: 150.644},     zoom: 8   }); }  </script>