从字符串SQL中选择最长的单词

function findLongestWord(sql) {
  // 拆分字符串SQL为单词列表
  const words = sql.split(' ');

  // 初始化最长单词为空字符串
  let longestWord = '';

  // 遍历单词列表
  for (let i = 0; i < words.length; i++) {
    const word = words[i];

    // 更新最长单词
    if (word.length > longestWord.length) {
      longestWord = word;
    }
  }

  // 返回最长单词
  return longestWord;
}

const sql = 'SELECT * FROM users WHERE age > 18';
const longestWord = findLongestWord(sql);
console.log('最长的单词是：', longestWord);