Observed events var events = 'click mouseover mouseout'; $('.div-1').on(events, testOne); $('.div-0').on(events, '.div-1', testTwo); Inside function testOne (e) e.currentTarget = ? e.delegateTarget = ? e.relatedTarget = ? e.target = ? e.type = ? Inside function testTwo (e) e.currentTarget = ? e.delegateTarget = ? e.relatedTarget = ? e.target = ? e.type = ?