@iimm/shared/dist/esm/set/index.js

shared utils on browser and react env

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
import { isInArray } from "../isX";
/** 获取a和b的交集(以a为基准) a ∩ b */
export var intersection = function intersection() {
  var a = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var b = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var compareOptions = arguments.length > 2 ? arguments[2] : undefined;
  if (!Array.isArray(a) || !Array.isArray(b)) return [];
  return a.filter(function (item) {
    return isInArray(item, b, compareOptions);
  });
};

/** 获取a中不在b中的元素(差集), {x∣x∈A，且x∉B} */
export var differenceSet = function differenceSet() {
  var a = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var b = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var compareOptions = arguments.length > 2 ? arguments[2] : undefined;
  if (!Array.isArray(a)) return [];
  if (!Array.isArray(b)) return a;
  return a.filter(function (item) {
    return !isInArray(item, b);
  }, compareOptions);
};

/** 以a为基础获取ab的并集a∪b={x|x∈A || (x∉A && x∈B)} */
export var union = function union() {
  var a = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var b = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var compareOptions = arguments.length > 2 ? arguments[2] : undefined;
  if (!Array.isArray(a)) return b;
  if (!Array.isArray(b)) return a;
  return [].concat(_toConsumableArray(a), _toConsumableArray(differenceSet(b, a, compareOptions)));
};