Array.prototype.contains has been approved for the ES7 process: https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-04/apr-9.md#45-arrayprototypecontains
Rick On Wed, Jul 23, 2014 at 12:41 PM, Will Ray <wray...@gmail.com> wrote: > Additionally, .contains() can be used in a conditional statement directly, > while .indexOf() requires the result of a comparison with -1 (or a bitwise > inversion, which is not terribly intuitive). It's just more room for simple > typos. > > Will Ray > > > On Wed, Jul 23, 2014 at 5:29 AM, Maël Nison <nison.m...@gmail.com> wrote: > >> Isn't replacing DOMStringList a different issue than adding >> Array.prototype.contains ? >> >> Using indexOf is possible, but a .contains() method would give a stronger >> notice of intent when reading code. >> >> >> On 7 March 2014 15:11, Boris Zbarsky <bzbar...@mit.edu> wrote: >> >>> On 3/6/14 6:15 PM, Joshua Bell wrote: >>> >>>> FWIW, Blink uses DOMStringList only in IndexedDB and apparently in >>>> Location.ancestorOrigins >>>> >>> >>> Indeed. And Location.ancestorOrigins is fairly new and not broadly >>> implemented, so I don't expect its behavior to be a strong compat >>> constraint. >>> >>> So I guess that leaves us with a few questions: >>> >>> 1) Is it still early enough in the indexeddb world that we can change >>> the thing it uses from DOMStringList to Array. And if so whether that's a >>> change we want to make. >>> >>> 2) If we want to keep the non-writing behavior for indexeddb or for >>> some other reason (insufficiently flexible bindings systems?) can't switch >>> ti to Array for now, can we just remove item() and contains() from >>> DOMStringList to make the switch easier later? >>> >>> >>> -Boris >>> _______________________________________________ >>> es-discuss mailing list >>> es-discuss@mozilla.org >>> https://mail.mozilla.org/listinfo/es-discuss >>> >> >> >> >> -- >> Maël Nison (arcanis <https://twitter.com/arcanis>) >> Frontend Developer @ Sketchfab >> >> >> >> _______________________________________________ >> es-discuss mailing list >> es-discuss@mozilla.org >> https://mail.mozilla.org/listinfo/es-discuss >> >> > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss > >
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