backbone/collection-set.html at master · netsider/backbone · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title></title>
</head>
<body>
  <script src="jquery-1.11.2.js"></script>
  <script src="underscore.js"></script>
  <script src="backbone.js"></script>
  <script>
var TodosCollection = new Backbone.Collection();

TodosCollection.add([
    { id: 1, title: 'go to Jamaica.', completed: false },
    { id: 2, title: 'go to China.', completed: false },
    { id: 3, title: 'go to Disneyland.', completed: true }
]);

// we can listen for add/change/remove events
TodosCollection.on("add", function(model) {
  console.log("Added " + model.get('title'));
});

TodosCollection.on("remove", function(model) {
  console.log("Removed " + model.get('title'));
});

TodosCollection.on("change:completed", function(model) {
  console.log("Completed " + model.get('title'));
});

TodosCollection.set([
    { id: 1, title: 'go to Jamaica.', completed: true },
    { id: 2, title: 'go to China.', completed: false },
    { id: 4, title: 'go to Disney World.', completed: false }
]);

// Above logs:
// Completed go to Jamaica.
// Removed go to Disneyland.
// Added go to Disney World.
  </script>
  </body>
</html>