get value of an attribute of the clicked element

Question

<ul id='langs'>    <li data-val='en'>english</li>    <li data-val='fr'>francais</li>    <li data-val='it'>italiano</li> </ul> 

when the user clicks on any of these <li> I want to alert() it's data-val attribute value

anybody knows how?

Answer 1

Original answer - 2011

$('li').click(function () {     alert($(this).data('val')); }); 

See DEMO.

Update - 2017

Keep in mind that if you want to use the ES6 arrow function syntax, you cannot use this and you need to use e.currentTarget instead, where e is the event object passed as the first parameter to the event handler:

$('li').click(e => alert($(e.currentTarget).data('val'))); 

See DEMO.

Answer 2

This should do the job:

$(document).ready(function() {    $('#langs li').click(function() {     alert($(this).attr('data-val'));   }); }); 

Have a look at the Docs