When loading the list, jquery gets the first li attribute in ul. jquery-js tutorial

Use jquery to obtain the first li attribute in ul. when the list is loaded, the first attribute is selected by default. The following shows the implementation code. when the list is loaded, the first attribute is selected by default. ID of ul for top_menu

You can use $ ("# top_menu li: first") to obtain the first li tag under ul. Then you can use

For example, modify attributes: $ ("# top_menu li: first"). attr ("class", "select ");

Trigger event: $ ("# top_menu li: first"). click ();

If you want to obtain the tag under li, as follows:

$ ("# Top_menu li: first ")

You can also modify attributes: $ ("# top_menu li: first a"). attr ("","");

Trigger event: $ ("# top_menu li: first a"). click ();

The Code is as follows: