IE has supported all of these for as long as I can remember. AFAIK, it's never been a requirement _in browsers_ to escape [ inside a character class or ] outside e.g. `/[[]/` ([ is inside) or `/[]]/` (] is outside). If it's not the case in the spec (I haven't checked the spec grammar), it should probably be classed as a spec bug for compat reasons.
On Fri, 3 Jun 2016 at 14:20 Boris Zbarsky <[email protected]> wrote: > On 6/3/16 4:20 AM, Isiah Meadows wrote: > > These three RegExps don't appear valid, even after reading the Annex B, > > but they do behave consistently in both Chrome and Firefox. > > Note that Chrome and Firefox use the same regexp implementation, so them > agreeing on how a regexp is handled means a lot less than if two > independent implementations agreed. > > -Boris > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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