JQuery DOM operation instance (1) -- Tab & amp; Tab switch, jquerydom

JQuery DOM operation instance (1) -- Tab & Tab switch, jquerydom

I. Native JavaScript coding tab Switch

Ii. Compile a tab switch using jQuery

In the process of compiling tabs with jQuery, it is important to understand how to use. eq () and. index.

. Eq () is a method of jQuery traversal. The parameter is the index. index () of the element (). Note that the index starts from 0. If the index is negative, it indicates the position starting from the end of the set.

The. index () method searches for elements that match the object indicated by the parameter and returns the index value of the corresponding element. If a matching element is found, return from 0; if no matching element is found, return-1.

Index () is often used to obtain the sequence of an object, for example: