message: Use forEach instead of ES6 'for of' loop
diff: @@ -26,9 +26,7 @@ export const _ = {
  },
  omit(obj, ...keys) {
  const result = Object.assign({}, obj);
  - for(let key of keys) {
  - delete result[key];
  - }
  + keys.forEach(key => delete result[key]);
  return result;
  }
  };
  