Backbone's Extend Method

console

>Unit.show
function (){
            console.log("show")
}

>Unit.show()
show

extend.js

// the extend method--the second arg is the class properties.

    var extend = function (protoProps, classProps) {
        var child = inherits(this, protoProps, classProps);
        child.extend = extend;
        return child;
    };

My_model.js

var Unit = Honeybee.Model.extend(
    {
        toJSON : function(){
          var copy = ko.toJS(this)
          return {title : copy.title}
        }


        ,initialize: function(data){
            _.extend( this, ko.mapping.fromJS( data, unitMappings, this ) , 
                {
                    dirtyFlag : new ko.dirtyFlag(this, false)
                }
            )
        }

    }
    ,{
        'show' : function(){
            console.log("show")
        }

    }
)