lightning component attribute is not set

Hi

I am using the below code to set the component attribute in the init event. The server controller is returning the values, which I am assigning to the component attribute. But the value is not getting set. Can you please help.

({
    doInit:function(component,event,helper){
    console.log('start of init method');
    var options = component.get("v.options");
    options.push({'label':'Pleasure Boat','value':'PB'});
	var action = component.get("c.getBoatType");
    action.setCallback(this,function(response){
                       var state = response.getState(); 
                       if(state == "SUCCESS")
                       {
                           var resp = response.getReturnValue();
                           console.log("length of array " + resp.length);
                           component.set("v.boatType",resp);
                           var bt = component.get("v.boattype"); 
                           console.log('BT ' + bt.length);
                        }
        				else
                        {
                            console.log("Failed with state " + state);
                        }
    					});
	$A.enqueueAction(action);
}
})