YUI Library Examples: DataSource Utility: DataSource with Polling

YUI().use("datasource-function", "datasource-polling", function(Y) {
    var myFunction = function() {
            return new Date();
        },
        myDataSource = new Y.DataSource.Function({source:myFunction}),
        callback = {
            success: function(e){
                alert("At the tone the time will be: " + e.response.results[0]);
            },
            failure: function(e){
                alert("Could not retrieve data: " + e.error.message);
            }
        },
        id = myDataSource.setInterval(1000, null,callback); // Starts polling
 
        myDataSource.clearInterval(id); // Ends polling
});