Hi François
You should use
h.values().invoke("draw");
As specified in the Has#each method, the iterator's first argument is an
object with two properties : key and value
http://api.prototypejs.org/language/Hash/prototype/each/
On Thu, Mar 10, 2011 at 8:17 PM, Francois <[email protected]>wrote:
> Hi!
> I had problems using the 'invoke' method with an Hash :
> the Enumerable API says about 'invoke' : "Invokes the same method,
> with the same arguments, for all items in a collection. Returns the
> results of the method calls."
> so I expected the following code to work :
>
> function A() {};
> A.prototype.draw = function() {
> console.log('A.draw');
> };
> var h = new Hash({ a: new A});
> console.log('h.size = ', h.size());
> h.invoke('draw');
>
> but the last call to invoke throws an exception.
> What is wrong with my code? any suggestion ?
> Thanks in advance!
>
>
> ps: I did this to work around the problem :
> h.each( function(e) { e[1].draw(); } );
>
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