get-nested-object-property/dist/get-nested-object-property.esm.js

A safe way to retrieve values from any level of the object cavity

import isString from 'is-string';
import isObject from 'is-object';
import hasOwnProperty from 'ts-has-own-property';

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 _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;
}

function _createForOfIteratorHelperLoose(o, allowArrayLike) {
  var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
  if (it) return (it = it.call(o)).next.bind(it);

  if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
    if (it) o = it;
    var i = 0;
    return function () {
      if (i >= o.length) return {
        done: true
      };
      return {
        done: false,
        value: o[i++]
      };
    };
  }

  throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

var getNestedObjectProperty = function getNestedObjectProperty(object, propertyName) {
  var _currentObject;

  if (!isObject(object) || !isString(propertyName) || propertyName.trim() === '') {
    return null;
  }

  var propertyNames = propertyName.split('.');
  var currentObject = object;

  for (var _iterator = _createForOfIteratorHelperLoose(propertyNames), _step; !(_step = _iterator()).done;) {
    var _propertyName = _step.value;

    if (!isObject(currentObject) || !hasOwnProperty(currentObject, _propertyName)) {
      return null;
    }

    currentObject = currentObject[_propertyName];
  }

  return (_currentObject = currentObject) != null ? _currentObject : null;
};

export default getNestedObjectProperty;
export { getNestedObjectProperty };
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