documentation/node_modules/@docusaurus/theme-classic/lib/theme/DocVersionBadge/index.js

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import React from 'react';
import clsx from 'clsx';
import Translate from '@docusaurus/Translate';
import {ThemeClassNames} from '@docusaurus/theme-common';
import {useDocsVersion} from '@docusaurus/theme-common/internal';
export default function DocVersionBadge({className}) {
  const versionMetadata = useDocsVersion();
  if (versionMetadata.badge) {
    return (
      <span
        className={clsx(
          className,
          ThemeClassNames.docs.docVersionBadge,
          'badge badge--secondary',
        )}>
        <Translate
          id="theme.docs.versionBadge.label"
          values={{versionLabel: versionMetadata.label}}>
          {'Version: {versionLabel}'}
        </Translate>
      </span>
    );
  }
  return null;
}