Re: Variables and Object creation using prototypes

You answered (4) and you are correct! Well done!

Incidentally, this script does require a browser, because it uses the
"alert" function.

Cheer!
Nathar

Michael Winter wrote:
> On 30/04/2006 12:33, nrlz@hotmail.com wrote:
>
> > Try to guess what happens if I run the following code in any modern
> > browser. [...]
>
> A "modern browser" doesn't matter. Any correct ECMAScript implementation
> will do.
>
> > Will I get:
> >
> > 1) 1,2...a,b
> > 2) a,b...a,b
> > 3) null...null
> > 4) 1,2,a,b...1,2,a,b
>
> [snip]
>
> > Group.prototype = {
> > members: [],
> >
> > addMember: function(m) {
> > this.members.push(m);
> > },
> >
> > listMembers: function() {
> > return this.members.join(",");
> > }
> > };
>
> The latter (4). The members array is a property of the prototype object,
> not objects created via the Group constructor function. As each
> resulting object will /share/ the properties of the prototype, any
> properties added to it will accumulate and be accessible to all instances.
>
> [snip]
>
> Mike
>
> --
> Michael Winter
> Prefix subject with [News] before replying by e-mail.
Received on Mon May 1 05:28:00 2006