* | `http://host/?a=apple&b`          | `"apple"`             |
   */
  fun queryParameter(name: String): String? {
    if (queryNamesAndValues == null) return null
    for (i in 0 until queryNamesAndValues.size step 2) {
      if (name == queryNamesAndValues[i]) {
        return queryNamesAndValues[i + 1]
      }
    }
    return null
  }

  /**