Event Delegation

One of the hot methodologies in the JavaScript world is event delegation, and for good reason. Event delegation allows you to avoid adding event listeners to specific nodes; instead, the event listener is added to one parent. That event listener analyzes bubbled events to find a match on child elements. The base concept is fairly simple but many people don't understand just how event delegatio

[tabarka]

イベントをクローンしたときの

[ledsun]

event.targetにはイベントが起きたelementが入っている。監視したいelementかチェックして対応するhandlerを呼べば、event delegation。