YUI2 in YUI3 example : http://ericmiraglia.com/yui/demos/2in3dt.php

2in3dt.js

YUI().use('event', 'event-custom', 'yui2-dragdrop', 'yui2-datatable', function (Y) {

    var YAHOO = Y.YUI2,
	eventName = '"page:dataTableCreated';
    
    Y.on(eventName, function(oDS, oDT){
	Y.log(oDS);
	Y.log(oDT);
    });

    Y.on("available", function() {
    
        //This is the data from which the DataTable will be built:
        var bookorders = [
            {id:"po-0167", date:new Date(1980, 2, 24), quantity:1, amount:4, title:"A Book About Nothing",
            description: "Lorem ipsum dolor sit amet consectetuer Quisque ipsum suscipit Aenean ligula. Accumsan molestie nibh dui orci vitae auctor nec pulvinar ligula elit."},
            {id:"po-0783", date:new Date("January 3, 1983"), quantity:null, amount:12.12345, title:"The Meaning of Life",
            description: "Vestibulum scelerisque wisi adipiscing turpis odio Phasellus euismod id orci tristique. Hendrerit sem dictum volutpat cursus pretium dui vitae tincidunt Vivamus Aenean."},
            {id:"po-0297", date:new Date(1978, 11, 12), quantity:12, amount:1.25, title:"This Book Was Meant to Be Read Aloud",
            description: "Malesuada pellentesque nibh magna nisl tincidunt wisi dui Nam nunc convallis. Adipiscing leo augue Nulla tellus nec eros metus cursus pretium Sed."},
            {id:"po-1482", date:new Date("March 11, 1985"), quantity:6, amount:3.5, title:"Read Me Twice",
            description: "Libero justo pede nibh tincidunt ut tempus metus et Vestibulum vel. Sem justo morbi lacinia dui turpis In Lorem dictumst volutpat cursus."}
        ];
    
        var myColumnDefs = [
            {key:"id", sortable:true, resizeable:true},
            {key:"date", formatter:YAHOO.widget.DataTable.formatDate, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC},resizeable:true},
            {key:"quantity", formatter:YAHOO.widget.DataTable.formatNumber, sortable:true, resizeable:true},
            {key:"amount", formatter:YAHOO.widget.DataTable.formatCurrency, sortable:true, resizeable:true},
            {key:"title", sortable:true, resizeable:true}
        ];
 
        var myDataSource = new YAHOO.util.DataSource(bookorders);
        myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSARRAY;
        myDataSource.responseSchema = {
            fields: ["id","date","quantity","amount","title"]
        };
 
        var myDataTable = new YAHOO.widget.DataTable("basic",
                myColumnDefs, myDataSource);

        myDataTable.subscribe("initEvent", function(){
           Y.log('******** hello from initEvent');
        });

        myDataTable.subscribe("rowClickEvent", function(){
           Y.log('******** hello from rowClickEvent');
        });
                
        Y.fire(eventName, myDataSource, myDataTable );
    }, "#basic");

});