解析以逗号分隔的key=value对列表的javascript字符串的简明方法是什么？

function parseKeyValuePairs(str) {
  var pairs = str.split(",");
  var result = {};

  for (var i = 0; i < pairs.length; i++) {
    var keyValue = pairs[i].split("=");
    var key = keyValue[0].trim();
    var value = keyValue[1].trim();
    result[key] = value;
  }

  return result;
}

// 示例用法
var str = "key1=value1, key2=value2, key3=value3";
var parsedObj = parseKeyValuePairs(str);
console.log(parsedObj);

{
  key1: "value1",
  key2: "value2",
  key3: "value3"
}