How to get the position of an specific li in a ul tag?

问题

I want to get number of one li that I hover on with jQuery. this is my code :

<ul>
   <li></li>
   <li></li>
   <li></li> /* I want hover on this element */
   <li></li>
   <li></li>
</ul>

I want when hover on certain element in top code get number of all lies.... for example in top code I want get 3 (This means that this third element)

回答1:

You can use this:

var number = $(this).index() + 1;

Demo here

The .index() starts at 0 so I added +1 because you wanted to start counting from 1.

来源：https://stackoverflow.com/questions/18555857/how-to-get-the-position-of-an-specific-li-in-a-ul-tag