JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" class='boundParent' />
  <input type="checkbox" class='boundParent' />
  <input type="checkbox" class="boundChild" />
  <input type="checkbox" class="boundChild" />

<button class="runTest">Disable Checked Items</button>

JavaScript

$('.runTest').click(function(){
    var _el = $('[input:checked][class*="boundParent"]').prop('checked');
    alert(_el);
    _el.each(function(){
        alert(_el);
        //_el.prop("disabled", true)
    })
    //true === _el.prop('checked') ? _el.prop("disabled", true) : '';
            
    //$('[input:checked][class*="boundParent"]').prop('checked', true).prop("disabled", true);
});