graphql/jsutils/mapValue.mjs

A Query Language and Runtime which can target any service.

/**
 * Copyright (c) 2019-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */
import objectEntries from '../polyfills/objectEntries';
/**
 * Creates an object map with the same keys as `map` and values generated by
 * running each value of `map` thru `fn`.
 */

export default function mapValue(map, fn) {
  var result = Object.create(null);
  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = objectEntries(map)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var _ref2 = _step.value;
      var _key = _ref2[0];
      var _value = _ref2[1];
      result[_key] = fn(_value, _key);
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return != null) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  return result;
}