JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="litemsd">
 <li class="litemd">
  <input type="checkbox" id="d1" name="d1" />
  <label for="d1">Number One</label>
 </li>
 <li class="litemd">
  <input type="checkbox" id="d2" name="d2" />
  <label for="d2">Numer Two</label>
 </li>
 <li class="litemd">
  <input type="checkbox" id="d3" name="d3" />
  <label for="d3">Numer Three</label>
 </li>
</ul><input type="button" onclick="doit();" value="click"/>

JavaScript

function doit(){
    $$('li.litemd input:checked').each(function(s) {
          alert(s.next().innerHTML);
      });
    }