@jedmao/redux-mock-store/dist/esm/utils.js

A mock store for testing your redux async action creators and middleware

export function isFunction(value) {
    return 'function' === typeof value;
}
export function isPlainObject(value) {
    return (Object.prototype.toString.call(value) === '[object Object]' &&
        Object.getPrototypeOf(value) === Object.prototype);
}