react/scripts/error-codes/invertObject.js

36 lines
846 B
JavaScript

/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow
*/
'use strict';
/*:: import type { ErrorMap } from './Types' */
/**
* turns
* { 'MUCH ERROR': '0', 'SUCH WRONG': '1' }
* into
* { 0: 'MUCH ERROR', 1: 'SUCH WRONG' }
*/
function invertObject(targetObj/* : ErrorMap */)/* : ErrorMap */ {
var result = {};
var mapKeys = Object.keys(targetObj);
for (let i = 0; i < mapKeys.length; i++) {
var originalKey = mapKeys[i];
var originalVal = targetObj[originalKey];
result[originalVal] = originalKey;
}
return result;
}
module.exports = invertObject;