verificator/es/utils/isPlainObject.js

Client and server-side validation JavaScript library

import isObjectLike from './isObjectLike';
const toString = (value) => Object.prototype.toString.call(value);
const isPlainObject = (value) => {
    if (!isObjectLike(value) || toString(value) !== '[object Object]') {
        return false;
    }
    if (Object.getPrototypeOf(value) === null) {
        return true;
    }
    let proto = value;
    while (Object.getPrototypeOf(proto) !== null) {
        proto = Object.getPrototypeOf(proto);
    }
    return Object.getPrototypeOf(value) === proto;
};
export default isPlainObject;