Conditional Logic Switch/ Field group without updating the page

Hi there,

I just wondered how I could show/hide content based on an on/off switch field..
(without having to reload the page)

I have tried adding this code to the WP Admin Footer area in WPCodebox...
(I don't really know what i'm missing)

jQuery(function($) {
  setTimeout(function () {
    const $switch = $('input[name="is_framed"]');
    const $framingOptions = $('.Framing-options');

    function toggleFramingOptions() {
      const isChecked = $switch.prop('checked');
      console.log('Switch is checked:', isChecked); // debug
      if (isChecked) {
        $framingOptions.show();
      } else {
        $framingOptions.hide();
        $framingOptions.find('input[type="checkbox"]').prop('checked', false);
      }
    }

    toggleFramingOptions(); // run once on load
    $switch.on('change', toggleFramingOptions); // run when changed
  }, 300); // slight delay (adjust if needed)
});

Would appreciate any help anyone can give..
Oli