T.J. what the reasons not to make them Object.prtototype methods?

On 18 окт, 14:21, "T.J. Crowder" <t...@crowdersoftware.com> wrote:
> On Oct 18, 8:30 am, buda <www...@pochta.ru> wrote:
>
> > I try
>
> > var o = {};
> > o.name = 'propertyName';
> > alert(o.keys); --> undefined
>
> > why? but in debugger I see that Object has all methods, but o - not!
>
> `keys` is not an instance method, it's a method of the `Object`
> function:
>
> alert(Object.keys(o)); // "name"
>
> You're confusing `Object` with `Object.prototype`. The properties of
> `Object` are not inherited by object instances; the properties of
> `Object.prototype` are.
> --
> T.J. Crowder
> Independent Software Engineer
> tj / crowder software / com
> www / crowder software / com

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