如何交换字符串中特定单词的顺序？

function swapWordsOrder(str, word1, word2) {
  // 将字符串拆分为单词数组
  var words = str.split(" ");

  // 找到特定单词的位置
  var index1 = words.indexOf(word1);
  var index2 = words.indexOf(word2);

  // 交换特定单词的位置
  if (index1 !== -1 && index2 !== -1) {
    var temp = words[index1];
    words[index1] = words[index2];
    words[index2] = temp;
  }

  // 重新构建字符串
  var result = words.join(" ");
  return result;
}

// 示例用法
var sentence = "Hello world, how are you?";
var word1 = "Hello";
var word2 = "you";
var swappedSentence = swapWordsOrder(sentence, word1, word2);
console.log(swappedSentence);