Lens which accepts POJO or Immutable Maps

RamdaOptionalImmutableLens.js

//helpers
const getter = R.curry(function (key, obj) {
    return Iterable.isIterable(obj)
        ? obj.get(key) : obj[key];
});

const setter = R.curry(function (key, val, obj) {
    return Iterable.isIterable(obj)
        ? obj.set(key, value) : R.assoc(key, val, obj);
});

//lens
const lens = (key) => R.lens(getter(key), setter(key));
const active = lens("active");