functional-javascript duckCount solution

duckCount.js

function duckCount(){
        function Count(args,pos,count){
                if(pos<args.length) return Count(args,pos+1,count + Object.prototype.hasOwnProperty.call(args[pos], "quack") ? 1 : 0)
                else return count
        }
        return Count(arguments,0,0);
}
                
module.exports = duckCount