Map Support

[closet6]

I see you support Arrays and Sets, do you support Maps? I'm having some issues with them, and I don't see anything in the documentation.

Thanks.

[nicky1038]

I've published ta-json-xx NPM package with Map support. It is a fork of @danielweck's repo, which in turn is a fork of this repo.

I've also made a PR with these changes into @danielweck's repo. If it is accepted, it might make sense to use Daniel's package, ta-json-x, instead.