Updating an entity.

gistfile1.js

var entity = new Kinvey.Entity('my-collection');
entity.set('key', 'value');
entity.save({
    success: function(entity) {
        var value = entity.get('key');
        // value == "value"

        // Entity is now created, lets update another field.
        entity.set('foo', 'bar');
        entity.save({
          success: function(entity) {
            var foo = entity.get('foo');
            // foo == "foo"
          },
          error: function(error) {
            // Error.
          }
        });
    },
    error: function(error) {
        // Error.
    }
});