On Fri, Dec 30, 2011 at 5:24 PM, Jason Orendorff <[email protected]>wrote:
> On Fri, Dec 30, 2011 at 6:58 AM, Xavier MONTILLET > <[email protected]> wrote: > > http://wiki.ecmascript.org/doku.php?id=harmony:string_extras > > There is a proposal for String.prototype.contains so why can't I find > > one for Array.prototype.contains? > > No kidding. I need this method every time I write ECMAScript code. > What I want is like: > > Object.defineProperty(Array.prototype, "contains", { > configurable: true, > writable: true, > value: function contains(x) { > return this.indexOf(x) !== -1; > } > }); > > except without the property lookup for indexOf. > At this.indexOf ? Or the whole "this.indexOf(x) !== -1;" lookup? How else could it work? Rick > > -j > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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