lib/util.js

  1. // Copyright 2018 Google Inc. All Rights Reserved.
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. //      http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  15. 'use strict';
  17. module.exports = {
  18.   merge2: merge2
  19. }
  21. /**
  22.  * merges two objects, with obj1 taking override precedent
  23.  * @function merge2
  24.  * @instance
  25.  * @param {object} obj1 dominant object to merge with
  26.  * @param {object} obj2 subordinate object to merge with
  27.  * @return {object}
  28.  */
  29. function merge2(obj1, obj2) {
  30.   if (!obj1) {
  31.     return obj2;
  32.   } else if (!obj2) {
  33.     return obj1;
  34.   }
  36.   var result = obj2
  38.   Object.keys(obj1).forEach(function (key, ndx, arr) {
  39.     result[key] = obj1[key];
  40.   });
  42.   return result
  43. }