yui - custom event

yui - custom event
Step 1: Define a custom event

var onCustomEvent1 = new YAHOO.util.CustomEvent('onCustomEvent');

Step 2: Make methods subscribe to the event

onCustomEvent1.subscribe(method1);
onCustomEvent1.subscribe(method2);

etc.You can also pass arguments to the subscribe method, which can be accessed by the subscribed method, as explained below.

Step 3: Whenever that event is supposed to be triggerd, cause the event to be executed

onCustomEvent1.fire();

You can also pass arguments to the fire method, these arguments can then be accessed in the subscribe method explained below.

onCustomEvent1.fire({action:'fire'});
function method1(event, arguments, obj) {}

* event returns the name of the custom event
* arguments is the set of arguments that are passed in the fire event
* obj is the argument that is passed in the subscribe method.

var fooEvent = new YAHOO.util.CustomEvent('fooEvent');

fooEvent.subscribe(function (a, b, c) {
  console.log(arguments);  //  ["fooEvent", [Object { hello="world"}], Object { foo="bar"}]
}, {foo: 'bar'})

fooEvent.fire({hello:'world'})