javascript实现PHP字典排序ksort

摘要：实现字典排序当前规定要进行排序的数组规定如何排列数组的元素项目上面写好字典排序方法，然后进行调用腾讯开放平台示例仅供参考最后，字典排序后的顺序为

/**
 * javascript实现PHP字典排序
 * @param {Object} vm 当前this
 * @param {Array} inputArr 规定要进行排序的数组
 * @param {String} sort_flags 规定如何排列数组的元素/项目
 */
export function ksort(vm, inputArr, sort_flags) {
  //  discuss at: http://phpjs.org/functions/ksort/
  // original by: GeekFG (http://geekfg.blogspot.com)
  // improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // improved by: Brett Zamir (http://brett-zamir.me)
  //        note: The examples are correct, this is a new way
  //        note: This function deviates from PHP in returning a copy of the array instead
  //        note: of acting by reference and returning true; this was necessary because
  //        note: IE does not allow deleting and re-adding of properties without caching
  //        note: of property position; you can set the ini of "phpjs.strictForIn" to true to
  //        note: get the PHP behavior, but use this only if you are in an environment
  //        note: such as Firefox extensions where for-in iteration order is fixed and true
  //        note: property deletion is supported. Note that we intend to implement the PHP
  //        note: behavior by default if IE ever does allow it; only gives shallow copy since
  //        note: is by reference in PHP anyways
  //        note: Since JS objects" keys are always strings, and (the
  //        note: default) SORT_REGULAR flag distinguishes by key type,
  //        note: if the content is a numeric string, we treat the
  //        note: "original type" as numeric.
  //  depends on: i18n_loc_get_default
  //  depends on: strnatcmp
  //   example 1: data = {d: "lemon", a: "orange", b: "banana", c: "apple"};
  //   example 1: data = ksort(data);
  //   example 1: $result = data
  //   returns 1: {a: "orange", b: "banana", c: "apple", d: "lemon"}
  //   example 2: ini_set("phpjs.strictForIn", true);
  //   example 2: data = {2: "van", 3: "Zonneveld", 1: "Kevin"};
  //   example 2: ksort(data);
  //   example 2: $result = data
  //   returns 2: {1: "Kevin", 2: "van", 3: "Zonneveld"}

  var tmp_arr = {},
    keys = [],
    sorter, i, k, that = vm,
    strictForIn = false,
    populateArr = {};

  switch (sort_flags) {
    case "SORT_STRING":
      // compare items as strings
      sorter = function (a, b) {
        return that.strnatcmp(a, b);
      };
      break;
    case "SORT_LOCALE_STRING":
      // compare items as strings, original by the current locale (set with  i18n_loc_set_default() as of PHP6)
      var loc = vm.i18n_loc_get_default();
      sorter = vm.php_js.i18nLocales[loc].sorting;
      break;
    case "SORT_NUMERIC":
      // compare items numerically
      sorter = function (a, b) {
        return ((a + 0) - (b + 0));
      };
      break;
    // case "SORT_REGULAR": // compare items normally (don"t change types)
    default:
      sorter = function (a, b) {
        var aFloat = parseFloat(a),
          bFloat = parseFloat(b),
          aNumeric = aFloat + "" === a,
          bNumeric = bFloat + "" === b;
        if (aNumeric && bNumeric) {
          return aFloat > bFloat ? 1 : aFloat < bFloat ? -1 : 0;
        } else if (aNumeric && !bNumeric) {
          return 1;
        } else if (!aNumeric && bNumeric) {
          return -1;
        }
        return a > b ? 1 : a < b ? -1 : 0;
      };
      break;
  }

  // Make a list of key names
  for (k in inputArr) {
    if (inputArr.hasOwnProperty(k)) {
      keys.push(k);
    }
  }
  keys.sort(sorter);

  // BEGIN REDUNDANT
  vm.php_js = vm.php_js || {};
  vm.php_js.ini = vm.php_js.ini || {};
  // END REDUNDANT
  strictForIn = vm.php_js.ini["phpjs.strictForIn"] && vm.php_js.ini["phpjs.strictForIn"].local_value && vm.php_js
    .ini["phpjs.strictForIn"].local_value !== "off";
  populateArr = strictForIn ? inputArr : populateArr;

  // Rebuild array with sorted key names
  for (i = 0; i < keys.length; i++) {
    k = keys[i];
    tmp_arr[k] = inputArr[k];
    if (strictForIn) {
      delete inputArr[k];
    }
  }
  for (i in tmp_arr) {
    if (tmp_arr.hasOwnProperty(i)) {
      populateArr[i] = tmp_arr[i];
    }
  }

  return strictForIn || populateArr;
}

上面写好字典排序方法ksort，然后进行调用

let aa = ksort(
  this,
  {
    "app_id": "10000",
    "time_stamp":"1493449657",
    "nonce_str":"20e3408a79",
    "key1":"腾讯AI开放平台",
    "key2":"示例仅供参考",
    "sign":""
  }
)

最后，字典排序后的顺序为：