Digging into ECMA-262, I cannot find this noted but it appears to be implemented in V8 and SpiderMonkey.
Mozilla states this as non-standard<https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name>so I am guessing that its not documented in ECMA-262. Is this defined in the specification or did I miss it? If not, +1 on its standardization into the specification. - Tim On Fri, Feb 7, 2014 at 10:52 PM, Timothy Quinn <tim.c.qu...@gmail.com>wrote: > LOL. I did not realize that was implemented already :) > > Thanks, > - Tim > > > On Fri, Feb 7, 2014 at 10:28 PM, Domenic Denicola < > dome...@domenicdenicola.com> wrote: > >> o.constructor.name seems good? >> ------------------------------ >> From: Timothy Quinn <tim.c.qu...@gmail.com> >> Sent: 2/7/2014 22:26 >> To: es-discuss@mozilla.org >> Subject: Efficient determination of implemented class name >> >> An area of challenge in JavaScript is the ability to detect a >> JavaScript objects implemented class name. I have done this in the past >> with some success by parsing the objects constructor but I know that this >> depends on the Object constructor being named and is not very efficient as >> it requires the processing of a large string. >> >> Is it possible to include into the ECMA Specification a method of Object >> that returns the constructor function name which can be subsequently be >> used as an efficient class name detection mechanism? Maybe >> <Object>.getFunctionName(). >> >> My current current slow but steady method for detecting classes is as >> follows: >> >> function objClassName(o){ >> if(o===undefined){return "(undefined)" } >> if(o===null){return "(null)" } >> var a=/function\s+(.+)\s*\(.*\)\s*\{/.exec(o.constructor) >> return (a && a[1] ? a[1] : "(unknown)") >> }; >> >> Thanks! >> Tim >> >> >
_______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
