/** * Copyright (c) Facebook, Inc. and its affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @format * @flow */ 'use strict'; type Point = { x: ?number, y: ?number, ... }; const dummyPoint = {x: undefined, y: undefined}; const pointsDiffer = function(one: ?Point, two: ?Point): boolean { one = one || dummyPoint; two = two || dummyPoint; return one !== two && (one.x !== two.x || one.y !== two.y); }; module.exports = pointsDiffer;