Jquery: getting the index value of the current element _ jquery

JQuery is still very convenient to get the index value of the current element. For example, there are a lot of li resources. When the mouse moves up, do you know the number of li resources? JavaScript code

$ ("Li"). hover (function () {alert ($ ("li"). index (this ));});
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

The. index function is still very useful. It 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.