In addition to the cloning stuff, I've seen use of an immutables library [0] to make this stuff a little more explicit and simple. Not sure if that's still fash

In addition to the cloning stuff, I've seen use of an immutables library [0] to make this stuff a little more explicit and simple. Not sure if that's still fashionable though. [0] e.g. https://immutable-js.github.io/immutable-js/ https://immutable-js.github.io/immutable-js/