如何从由“/”组成的键/值字符串创建对象/数组

function createObjectFromString(str) {
  var pairs = str.split("/");
  var result = pairs[0].includes("/") ? {} : [];

  pairs.forEach(function(pair) {
    if (pair.includes("/")) {
      var key = pair.substring(0, pair.indexOf("/"));
      var value = pair.substring(pair.indexOf("/") + 1);
      
      if (result[key] === undefined) {
        result[key] = {};
      }
      
      if (value !== "") {
        result[key] = createObjectFromString(value);
      }
    } else {
      result.push(pair);
    }
  });

  return result;
}

// 示例用法
var str = "a/b/c/d/e/f";
var obj = createObjectFromString(str);
console.log(obj);