text: /**
   * @license
   * Copyright 2012 Google LLC
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  // 해당 uid코드는 blockly코드입니다.
  
  const soup = '!#$%()*+,-./:;=?@[]^_`{|}~'
    + 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  
  export default function () {
    const length = 20;
    const soupLength = soup.length;
    const id = [];
    for (let i = 0; i < length; i += 1) {
      id[i] = soup.charAt(Math.random() * soupLength);
    }
    return id.join('');
  }
  