| /** |
| * @license |
| * Copyright 2021 Google LLC |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| export function deepEqual<T>(a: T, b: T): boolean { |
| if (a === b) return true; |
| if (a === undefined || b === undefined) return false; |
| if (a === null || b === null) return false; |
| if (a instanceof Date && b instanceof Date) |
| return a.getTime() === b.getTime(); |
| |
| if (typeof a === 'object') { |
| if (typeof b !== 'object') return false; |
| const aObj = a as Record<string, unknown>; |
| const bObj = b as Record<string, unknown>; |
| const aKeys = Object.keys(aObj); |
| const bKeys = Object.keys(bObj); |
| if (aKeys.length !== bKeys.length) return false; |
| for (const key of aKeys) { |
| if (!deepEqual(aObj[key], bObj[key])) return false; |
| } |
| return true; |
| } |
| |
| return false; |
| } |
| |
| export function notDeepEqual<T>(a: T, b: T): boolean { |
| return !deepEqual(a, b); |
| } |
| |
| /** |
| * @param obj Object |
| */ |
| export function deepClone(obj?: object) { |
| if (!obj) return undefined; |
| return JSON.parse(JSON.stringify(obj)); |
| } |