如何在JS中查找数组中字符串中最长的单词

function findLongestWord(arr) {
  let longestWord = '';

  for (let i = 0; i < arr.length; i++) {
    const words = arr[i].split(' ');

    for (let j = 0; j < words.length; j++) {
      const word = words[j];

      if (word.length > longestWord.length) {
        longestWord = word;
      }
    }
  }

  return longestWord;
}

const array = ['Hello world', 'This is a test', 'JavaScript is awesome'];
const longest = findLongestWord(array);
console.log(longest);  // 输出：'JavaScript'