JS Basics-Event Object events

1. Event objects represent the state of events, such as the element in which the event occurred, the state of the keyboard key, the position of the mouse, and the state of the mouse button.
events are often used in conjunction with functions, and functions are not executed until the event occurs!

As you can see, in event handling, the browser has passed a parameter by default. in normal and anonymous functions, the event object is not passed.

http://blog.csdn.net/wangyy130/article/details/40514491

Http://www.runoob.com/try/try.php?filename=tryjquery_event_on_namespace questions

Http://www.w3school.com.cn/jsref/dom_obj_event.asp

JS Basics-Event Object events