Close the menu (click one to close other items), and close the menu.

Close the menu (click one to close other items), and close the menu.

1. The menu here is not only a menu bar, but also an article module.

2. Main effect: click one of them to close or expand yourself and close other expanded menus.

3. Advantages: less JavaScript code, easy to understand

Read the code.

HTML example (menu code, easy to copy, no line number is added)

<Li class = "nav-parent"> <a href = "#"> <span> system Settings </span> </a> <ul class = "children"> <li> <a href = "#"> email configuration </a> </li> <a href = "#"> file storage configuration </a> </ li> <a href = "#"> options </a> </li> </ul> </li> <li class = "nav-parent"> <a href = "#"> <span> system Settings </span> </a> <ul class = "children"> <li> <a href = "#"> email configuration </a> </li> <a href = "#"> file storage configuration </a> </li> <a href =" # "> Option </a> </li> </ul> </li> <li class =" nav-parent "> <a href =" # "> <span> system Settings </span> </a> <ul class = "children"> <li> <a href = "#"> email configuration </a> </li> <li> <a href = "#"> file storage configuration </a> </li> <a href = "#"> options </a> </ li> </ul> </li>

JS example (jquery is used here, with fewer lines of code)

 

Var $ container = $ ('. children '), $ trigger = $ ('. nav-parent '); // obtain all "parent and Child" $ iner respectively. hide (); // hide all "Sub" $ triggers. first (). find ('. children '). show (); // display the child of the first "parent" (expand the first) $ trigger. on ('click', function (e) {// when the "parent" click event if ($ (this ). find ('. children '). is (': Den den') {$ trigger. find ('. children '). hide (300); // close other $ (this ). find ('. children '). show (300); // display yourself} e. preventDefault ();});

 

In the same principle, you can change "find ()" to "next ()" to implement control over sibling nodes. This is mainly reflected in the display of text blocks and image blocks.