@exponent/ex-navigation/src/utils/PureComponent.js

Route-centric navigation library for React Native.

import { Component } from 'react';
import shallowEqual from 'fbjs/lib/shallowEqual';

export default class PureComponent extends Component {}
PureComponent.prototype.shouldComponentUpdate = function(nextProps, nextState) {
  return !shallowEqual(this.props, nextProps) ||
         !shallowEqual(this.state, nextState);
};