translate.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

/** @var \Magento\Translation\Block\Js $block */
?>
<!--
    For frontend area dictionary file is inserted into html head in Magento/Translation/view/base/templates/dictionary.phtml
    Same translation mechanism should be introduced for admin area in 2.4 version.
-->
<?php if ($block->dictionaryEnabled()) : ?>
    <script>
        require.config({
            deps: [
                'jquery',
                'mage/translate',
                'jquery/jquery-storageapi'
            ],
            callback: function ($) {
                'use strict';

                var dependencies = [],
                    versionObj;

                $.initNamespaceStorage('mage-translation-storage');
                $.initNamespaceStorage('mage-translation-file-version');
                versionObj = $.localStorage.get('mage-translation-file-version');

                <?php $version = $block->getTranslationFileVersion(); ?>

                if (versionObj.version !== '<?= $block->escapeJs($version) ?>') {
                    dependencies.push(
                        'text!<?= /* @noEscape */ Magento\Translation\Model\Js\Config::DICTIONARY_FILE_NAME ?>'
                    );

                }

                require.config({
                    deps: dependencies,
                    callback: function (string) {
                        if (typeof string === 'string') {
                            $.mage.translate.add(JSON.parse(string));
                            $.localStorage.set('mage-translation-storage', string);
                            $.localStorage.set(
                                'mage-translation-file-version',
                                {
                                    version: '<?= $block->escapeJs($version) ?>'
                                }
                            );
                        } else {
                            $.mage.translate.add($.localStorage.get('mage-translation-storage'));
                        }
                    }
                });
            }
        });
    </script>
<?php endif; ?>