If statements

How to run script and variables. Or not to, as it doesn't actually work.

<div id="output">
    #{ let counter = 0; }#
    <ul>
    #for(let item of items) {#
       #if(counter==1) {#<li>#counter#. #item#</li>#} else {#<li>else</li>#}#
    #{ counter++; }#
    #}#
    </ul>
</div>

<script src="https://hashjs.org/hashjs.js"></script> 
<script>
    const data = {
        items: ['Item 1', 'Item 2', 'Item 3']
    };

    let h = new hashJS("output");
    h.bind(data);
</script>
Output result:
#{ let counter = 0; }#
    #for(let item of items) {# #if(counter==1) {#
  • #counter#. #item#
  • #} else {#
  • else
  • #}# #{ counter++; }# #}#