Re: [Json] Minus Zero

[John Cowan <[e-mail]>]

Anders Rundgren scripsit:

> Apparently the ES6 folks consider IEEE 0.0 and -0.0 equal during JSON
> serialization.

In effect that means that -0, like NaN and Infinity and -Infinity, can't
be serialized correctly as JSON.  But instead of being serialized as null,
it's serialized the same as 0.

> In order to make anything else JSON would need separate integer and
> floating point types.

I don't understand that.  JavaScript's internal model of numbers already
includes -0.0 (e.g. the value of the expression 1/(-1*0) is -Infinity).
The node.js and Chrome REPLs will print -0 in appropriate circumstances
(whereas the Rhino and Edge REPLs will not).

-- 
John Cowan          http://www.ccil.org/~cowan        [e-mail]
But the next day there came no dawn, and the Grey Company passed on
into the darkness of the Storm of Mordor and were lost to mortal sight;
but the Dead followed them.          --"The Passing of the Grey Company"