code: function isJapanese(input = '') {
    if (isEmpty(input)) return false;
    return [...input].every((char) => KANJI_KANA_REGEX.test(char));
  }
docs: Test if `input` is [Kanji](https://en.wikipedia.org/wiki/Kanji) and/or [Kana](https://en.wikipedia.org/wiki/Kana) like “「泣き虫」”
  Includes Japanese full-width punctuation ranges
  @param  {String} [input=''] text
  @return {Boolean} true if all [Kanji](https://en.wikipedia.org/wiki/Kanji) and/or [Kana](https://en.wikipedia.org/wiki/Kana)
  @example
  isJapanese('泣き虫')
  // => true
  isJapanese('あア')
  // => true
  isJapanese('泣き虫。！〜') // Full-width punctuation
  // => true
  isJapanese('泣き虫.!~') // Half-width / Latin punctuation
  // => false
  isJapanese('泣き虫A')
  // => false
  isJapanese('A')
  // => false