React Tutorial - 9.event-handling
1.specify event attribute using onXxxxx
2.assign callback function as event handler to events
3.event delegation(bubbling) in raw javascript vs in react
4.get dom using event.target
1.specify event attribute using onXxxxx
2.assign callback function as event handler to events
3.event delegation(bubbling) in raw javascript vs in react
4.get dom using event.target