HTMLDialogElement.close()

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The close() method of the HTMLDialogElement interface closes the dialog. An optional DOMString may be passed as an argument, updating the returnValue of the dialog.

Syntax

dialogInstance.close(returnValue);

Parameters

returnValue Optional

A DOMString representing an updated value for the HTMLDialogElement.returnValue of the dialog.

Return value

Void.

Examples

The following example shows a simple button that, when clicked, opens a <dialog> containing a form via the showModal() method. From there you can click the Cancel button to close the dialog (via the HTMLDialogElement.close() method), or submit the form via the submit button.

  <!-- Simple pop-up dialog box, containing a form -->
  <dialog id="favDialog">
    <form method="dialog">
      <section>
        <p><label for="favAnimal">Favorite animal:</label>
        <select id="favAnimal" name="favAnimal">
          <option></option>
          <option>Brine shrimp</option>
          <option>Red panda</option>
          <option>Spider monkey</option>
        </select></p>
      </section>
      <menu>
        <button id="cancel" type="reset">Cancel</button>
        <button type="submit">Confirm</button>
      </menu>
    </form>
  </dialog>

  <menu>
    <button id="updateDetails">Update details</button>
  </menu>

  <script>
    (function() {
      var updateButton = document.getElementById('updateDetails');
      var cancelButton = document.getElementById('cancel');
      var dialog = document.getElementById('favDialog');
      dialog.returnValue = 'favAnimal';

      function openCheck(dialog) {
        if(dialog.open) {
          console.log('Dialog open');
        } else {
          console.log('Dialog closed');
        }
      }

      // Update button opens a modal dialog
      updateButton.addEventListener('click', function() {
        dialog.showModal();
        openCheck(dialog);
      });

      // Form cancel button closes the dialog box
      cancelButton.addEventListener('click', function() {
        dialog.close('animalNotChosen');
        openCheck(dialog);
      });

    })();
  </script>

Note: You can find this example on GitHub as htmldialogelement-basic (see it live also).

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
close
37
79
53
No
24
No
37
37
53
24
No
3.0

See also

  • The HTML element implementing this interface: <dialog>.

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https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/close