如何比较两个数组，从数组中返回匹配的关键字，重写第一个数组中的关键字

function compareArrays(array1, array2) {
  var matchedKeywords = [];
  
  for (var i = 0; i < array1.length; i++) {
    var keyword = array1[i];
    
    if (array2.includes(keyword)) {
      matchedKeywords.push(keyword);
    }
  }
  
  for (var j = 0; j < matchedKeywords.length; j++) {
    var matchedKeyword = matchedKeywords[j];
    var index = array1.indexOf(matchedKeyword);
    array1[index] = "新的关键字";
  }
  
  return array1;
}

var array1 = ["关键字1", "关键字2", "关键字3"];
var array2 = ["关键字2", "关键字4", "关键字5"];

var result = compareArrays(array1, array2);
console.log(result);