CBC_13_CarSearchController.js

({
	doFormSubmit : function(component, event, helper) {
        //fetching carTypeId attribute value from event
        var carTypeId = event.getParam('carTypeId');
        
        var carSearchResultComp = component.find("carSearchResult");
        
        // call the aura:method in the child component
        var carSearchCmpResult = carSearchResultComp.searchCars(carTypeId);
        console.log("auraMethodResult: " + carSearchCmpResult);
	},
})