Jquery Change and bind event code_jquery

The basic syntax of Jquery:

2 When binding a text box When

for each Bind an event handler to a specific event of the matching element. The
.bind() method is the primary way to attach behavior to a document. All JavaScript event objects, such as focus, mouseover, and resize, can be passed in as the type parameter.
My personal understanding of bind is to bind an event to this control and define an anonymous method for this event to achieve the verification you want;
Jquery basic syntax:


2 Multiple events: The names of the events are separated by spaces;