Yes, Sam Ruby prototyped a new Decimal built-in for SpiderMonkey, with
operators. This was in mid-2008 when ES4 was going down. See
https://bugzilla.mozilla.org/show_bug.cgi?id=445178
TC39 rejected hardcoding IEEE DFP into JS at the 2008 fall "Kona" meeting:
https://mail.mozilla.org/pipermail/es-discuss/2008-November/008179.html
Waldemar: "Decimal is out because the spec isn't ready and there are
some problems that are not small spec errors -- generic behavior of
functions, etc."
Some discussion lingered on:
https://mail.mozilla.org/pipermail/es-discuss/2009-January/008630.html
The plan since then is to add value types or proxies to the language, so
that Decimal, Complex, etc. with operators and literals for good
usability may be added by library authors. See
http://wiki.ecmascript.org/doku.php?id=strawman:value_proxies
and
http://users.soe.ucsc.edu/~cormac/papers/oopsla11.pdf
See also (from 2010) a hardcoded bignums strawman:
http://wiki.ecmascript.org/doku.php?id=strawman:bignums
/be
Andrew Paprocki wrote:
I see there was a bunch of work done to possibly introduce 128-bit
IEEE754r DFP back in the ES4 days:
http://wiki.ecmascript.org/doku.php?id=proposals:decimal&s=decimal
Has any work been done since ES4 to introduce a DFP type?
-Andrew
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