How do I call a JS constructor that takes parameters

Replying to my own question, I think I've found it here:

http://forum.world.st/BlockClosure-as-a-JavaScript-constructor-td4162123.html

Now Amber has BlockClosure>>newValue: and #newValue:value: 
#newValue:value:value: 

here's an example: 
new Foo();                // JS version 
Foo new.                  "Amber version" 

new Foo(1,2);             // JS version 
Foo newValue: 1 value: 2. "Amber version" 

Best regards

Andy Bower

On Friday, January 10, 2014 8:48:07 PM UTC, bowerandy wrote:

Hi,

I'm playing around with the HTML5 Canvas wrapper library KineticJS in Amber but I can't find a way to call constructor functions that take parameters. For example, How would I reproduce this JS call in Amber:

      var rect = new Kinetic.Rect({

        x: 239,

        y: 75,

        width: 100,

        height: 50,

        fill: 'green',

        stroke: 'black',

        strokeWidth: 4

      });

Best regards

Andy Bower

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