JAVASCRIPT

backbone js

var ships = new Backbone.Collection;

ships.on("add", function(ship) {
  alert("Ahoy " + ship.get("name") + "!");
});

ships.add([
  {name: "kjnFlying Dutchman"},
  {name: "Black Pearl"}
]);

backbone js

<script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.4.1/backbone-min.js" ></script>