Thanks Peter and Dmitry for your help! Things are starting to make more sense.
Aaron On Tue, May 24, 2011 at 3:50 AM, Dmitry A. Soshnikov < [email protected]> wrote: > In addition to Peter's info, here's a recent list of ES engines: > http://bga.github.com/list-of-ecmascript-engines/ Perhaps will be useful. > > Dmitry. > > > On 24.05.2011 12:33, Peter van der Zee wrote: > >> On Tue, May 24, 2011 at 4:40 AM, Aaron Godin<[email protected]> >> wrote: >> >>> Hello JSMentors, >>> >>> My questions is slightly less technical than I have seen in here, but >>> it is regarding versions of JS and ECMA script. Is there some way to >>> know which Javascript versions each of the major browsers are using? I >>> >> Formally, ECMAScript is at version 5.1. >> JavaScript, maintained by Mozilla (firefox), is at somewhere like >> 1.8.2 but implements a lot of proprietary features. Some of these are >> likely to show up in ES though. >> IE uses JScript, which has a lot of proprietary additions (much like >> JavaScript does). >> >> Both JavaScript and JScript are in most cases a super set of >> ECMAScript though. They implement their own features on top of it. >> >> Other than that, slightly older browsers will usually adhere to ES3. >> Most current browsers are somewhere in the middle between ES3 and ES5. >> They will implement at least ES3 and some or most of ES5's feature >> set. Most notably is "use strict", which is slowly being implemented >> across the board. The only browser that seems to be lagging behind is >> Opera, for reasons beyond me. Opera still holds on to ES3. >> >> - peter >> >> > -- > To view archived discussions from the original JSMentors Mailman list: > http://www.mail-archive.com/[email protected]/ > > To search via a non-Google archive, visit here: > http://www.mail-archive.com/[email protected]/ > > To unsubscribe from this group, send email to > [email protected] > -- To view archived discussions from the original JSMentors Mailman list: http://www.mail-archive.com/[email protected]/ To search via a non-Google archive, visit here: http://www.mail-archive.com/[email protected]/ To unsubscribe from this group, send email to [email protected]
