react/lib/shallowCompare.js

/**
 * Copyright 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.
 *
* @providesModule shallowCompare
*/

'use strict';

var shallowEqual = require('fbjs/lib/shallowEqual');

/**
 * Does a shallow comparison for props and state.
 * See ReactComponentWithPureRenderMixin
 * See also https://facebook.github.io/react/docs/shallow-compare.html
 */
function shallowCompare(instance, nextProps, nextState) {
  return !shallowEqual(instance.props, nextProps) || !shallowEqual(instance.state, nextState);
}

module.exports = shallowCompare;