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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

// cheap lodash replacements

/**
 * drop-in replacement for _.get
 * @param obj
 * @param path
 * @param defaultValue
 */
export function get(obj, path, defaultValue) {
  return path.split('.').reduce(function (a, c) {
    return a && a[c] ? a[c] : defaultValue || null;
  }, obj);
}
/**
 * drop-in replacement for _.without
 */

export function without(items, item) {
  return items.filter(function (i) {
    return i !== item;
  });
}
/**
 * drop-in replacement for _.isString
 * @param input
 */

export function isString(input) {
  return typeof input === 'string';
}
/**
 * drop-in replacement for _.isString
 * @param input
 */

export function isObject(input) {
  return _typeof(input) === 'object';
}
/**
 * repalcement for _.xor
 * @param itemsA
 * @param itemsB
 */

export function xor(itemsA, itemsB) {
  var map = new Map();

  var insertItem = function insertItem(item) {
    map.set(item, map.has(item) ? map.get(item) + 1 : 1);
  };

  itemsA.forEach(insertItem);
  itemsB.forEach(insertItem);
  var result = [];
  map.forEach(function (count, key) {
    if (count === 1) {
      result.push(key);
    }
  });
  return result;
}
/**
 * replacement for _.intersection
 * @param itemsA
 * @param itemsB
 */

export function intersection(itemsA, itemsB) {
  return itemsA.filter(function (t) {
    return itemsB.indexOf(t) > -1;
  });
}