@cch137/format-utils/dist/deep-equal/index.js

A collection of utility modules for formatting and processing data

export function deepEqual(a, b) {
    if (a === b)
        return true;
    if (a == null || b == null)
        return false;
    if (typeof a !== typeof b)
        return false;
    if (Array.isArray(a)) {
        return (Array.isArray(b) &&
            a.length === b.length &&
            a.every((item, index) => deepEqual(item, b[index])));
    }
    if (typeof a === "object") {
        const aKeys = Object.keys(a);
        const bKeys = Object.keys(b);
        return (aKeys.length === bKeys.length &&
            aKeys.every((key) => b.hasOwnProperty(key) && deepEqual(a[key], b[key])));
    }
    return a === b;
}