@kitmi/utils/src/hasMethod.js

A JavaScript utility library for both server and browser

function hasMethod(obj, name) {
    const desc = Object.getOwnPropertyDescriptor(obj, name);
    let has = !!desc && typeof desc.value === 'function';
    if (has) return true;

    let proto = Object.getPrototypeOf(obj);
    if (proto === Object.prototype) return has;

    return hasMethod(proto, name);
}

export default hasMethod;