Option to clone a body

There should be an option to clone a body and mutate it without mutating the old body. Something like this:

// {"size":2}
const a = bodybuilder()
  .size(2);

// {"size":2,"from":1}
bodybuilder(a.build())
  .from(1)
  .build();

In this example a should still only contain size. I think the new argument in bodybuilder should be a json string an not a bodybuilder instance because this would support hardcoded jsons too.

[danpaz]

I think the new argument in bodybuilder should be a json string an not a bodybuilder instance because this would support hardcoded jsons too.

I don’t think it would be straightforward to produce a bodybuilder instance from JSON, especially with multiple levels of nesting. The only option I see is to clone the bodybuilder instance as shown above.

[johannes-scharlach]

Thanks, I just noticed. Great job!