Issue #3207782 by nod_, bnjmnm, jptaranto: Add BC layer between @drupal/once and jQuery.once

    assets/vendor/jquery-once/jquery.once.min.js: { weight: -19, minified: true }

  dependencies:

    - core/jquery

    - core/jquery.once.bc

jquery.once.bc:

  version: VERSION

  js:

    misc/jquery.once.bc.js: { weight: -19 }

  dependencies:

    - core/jquery

    - core/once

    - core/drupal.object.assign

jquery.ui:

  version: &jquery_ui_version 1.12.1

/**

 * @file

 * This file allows calls to `once()` and `once.remove()` to also populate the

 * jQuery.once registry.

 *

 * It allows contributed code still using jQuery.once to behave as expected:

 * @example

 * once('core-once-call', 'body');

 *

 * // The following will work in a contrib module still using jQuery.once:

 * $('body').once('core-once-call'); // => returns empty object

 */

(($, once) => {

  // We'll replace the whole library so keep a version in cache for later.

  const drupalOnce = once;

  // When calling once(), also populate jQuery.once registry.

  function augmentedOnce(id, selector, context) {

    $(selector, context).once(id);

    return drupalOnce(id, selector, context);

  }

  // When calling once.remove(), also remove it from jQuery.once registry.

  function remove(id, selector, context) {

    $(selector, context).removeOnce(id);

    return drupalOnce.remove(id, selector, context);

  }

  // Expose the rest of @drupal/once API and replace @drupal/once library with

  // the version augmented with jQuery.once calls.

  window.once = Object.assign(augmentedOnce, drupalOnce, { remove });

})(jQuery, once);

/**

* DO NOT EDIT THIS FILE.

* See the following change record for more information,

* https://www.drupal.org/node/2815083

* @preserve

**/

(function ($, once) {

  var drupalOnce = once;

  function augmentedOnce(id, selector, context) {

    $(selector, context).once(id);

    return drupalOnce(id, selector, context);

  }

  function remove(id, selector, context) {

    $(selector, context).removeOnce(id);

    return drupalOnce.remove(id, selector, context);

  }

  window.once = Object.assign(augmentedOnce, drupalOnce, {

    remove: remove

  });

})(jQuery, once);

 No newline at end of file

name: 'JS once Test'

type: module

description: 'Module for the jsOnceTest.'

package: Testing

version: VERSION

js_once_test:

  path: '/js_once_test'

  defaults:

    _controller: '\Drupal\js_once_test\Controller\JsOnceTestController::onceTest'

    _title: 'OnceTest'

  requirements:

    _access: 'TRUE'

js_once_test.with_bc:

  path: '/js_once_with_bc_test'

  defaults:

    _controller: '\Drupal\js_once_test\Controller\JsOnceTestController::onceBcTest'

    _title: 'OnceBcTest'

  requirements:

    _access: 'TRUE'