JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" class="check_boxes" label="check all" />
<div class="flip_us">
<input type="checkbox" /><input type="checkbox" />
</div>

JavaScript

$('document').ready( function() {
    $('.check_boxes').click( function() {
      if ( !this.checked ) {
        $('.flip_us :checkbox').attr('checked', false);
      } else {
        $('.flip_us :checkbox').attr('checked', true);
      };     
    });
});