On Fri, Jul 12, 2013 at 10:19 AM, Mark S. Miller <erig...@google.com> wrote: > No. Even if toInteger meant "no fractional component", I would still expect > it only to return true if there is some specific mathematical integer that > the JS number can be said to exactly represent. For the same reason, I think > isInteger(-0) should be true and isInteger(NaN) should be false.
Agreed. isInteger() has one job, and it's kinda worthless if it can't even do that. How it should be: Number.isInteger(-0) == true Number.isInteger(NaN) == false Number.isInteger(Infinity) == false And, because of what we discussed in the recent thread... Number.isInteger(Math.pow(2,53)-1) == true Number.isInteger(Math.pow(2,53)) == false ~TJ _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
