[Waterluvian]

Can I be pedantic? If I'm wrong someone will correct me and I'll learn something.

Json is not exactly a subset because it supports representation of numbers of any precision. JavaScript will convert to an IEEE 754. But it's up to a json deserializer to decide how many decimals to use. I think.

[gnulinux]

I mean sure, doesn't change my point (pedantically C isn't a subset of C++ either). That was just a metaphor.