Function toSimpleString

src/utils.js:221–227

(str)

 * @returns {string} string
 */
const toSimpleString = (str) => {
  // eslint-disable-next-line no-implicit-coercion
  if (`${+str}` === str) {
    return str;
  }
  return JSON.stringify(str);
};

/**
 * @param {string} str string