Sharkey/packages/frontend/src/utility/deep-equal.ts

29 lines
737 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
export function deepEqual(a: any, b: any): boolean {
if (a === b) return true;
if (a === null) return b === null;
if (Array.isArray(a) && Array.isArray(b)) {
if (a.length !== b.length) return false;
for (let i = 0; i < a.length; i++) {
if (!deepEqual(a[i], b[i])) return false;
}
return true;
} else if (((typeof a) === 'object') && ((typeof b) === 'object')) {
const aks = Object.keys(a);
const bks = Object.keys(b);
if (aks.length !== bks.length) return false;
for (let i = 0; i < aks.length; i++) {
const k = aks[i];
if (!deepEqual(a[k], b[k])) return false;
}
return true;
}
return false;
}