Proxy Handler for accessing deep properties arbitrarily, like `obj.a.b.c.d.e` without getting the `cannot access a of undefined`

README.md

DeepObjectNoopProxy.js

This is by no means a fail safe solution, use with care, and add to the exceptions object anything that you can't avoid.

DeepObjectNoopProxy.js

const exceptions = {
  // map: () => {},
};

const handler = {
  get(target, key) {
    if (key === Symbol.toPrimitive) return () => undefined;

    if (!Object.keys(target).includes(key)) {
      const proxy = new Proxy(exceptions, handler);
      proxy.object = () => key;
      return proxy;
    }

    return target[key];
  },
}

export default new Proxy({}, handler);