62 lines
1.1 KiB
JavaScript
62 lines
1.1 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule styleDiffer
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* @flow
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*/
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'use strict';
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var deepDiffer = require('deepDiffer');
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function styleDiffer(a: any, b: any): bool {
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return !styleEqual(a, b);
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}
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function styleEqual(a: any, b: any): bool {
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if (!a) {
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return !b;
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}
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if (!b) {
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return !a;
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}
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if (typeof a !== typeof b) {
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return false;
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}
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if (typeof a === 'number') {
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return a === b;
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}
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if (Array.isArray(a)) {
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if (!Array.isArray(b) || a.length !== b.length) {
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return false;
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}
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for (var i = 0; i < a.length; ++i) {
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if (!styleEqual(a[i], b[i])) {
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return false;
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}
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}
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return true;
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}
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for (var key in a) {
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if (deepDiffer(a[key], b[key])) {
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return false;
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}
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}
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for (var key in b) {
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if (!a.hasOwnProperty(key)) {
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return false;
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}
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}
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return true;
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}
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module.exports = styleDiffer;
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