Is application change required when new couchbase node added to cluster?

I am using Node.js SDK to connect to a couchbase cluster. In Node.js docs they haven't specified how to pass multiple ips(of cluster nodes) while creating the cluster object but java docs shows it can accept array of IPs, is this functionality available in Node.js SDK too?

Also if this is how you connect to cluster with many nodes, whenever we add new nodes to cluster do we need to add its IP to the connection string and restart the application?

PS I am new to Couchbase and Node.js so please bear with me