function isObjectLike(value) { return typeof value === 'object' && value !== null; } export default function isObject(input) { if (!isObjectLike(input) || Object.prototype.toString.call(input) !== '[object Object]') { return false; } if (Object.getPrototypeOf(input) === null) { return true; } let proto = input; while (Object.getPrototypeOf(proto) !== null) { proto = Object.getPrototypeOf(proto); } return Object.getPrototypeOf(input) === proto; }