javascript - setinterval not working after clearinterval

I have a piece of javascript
code:

var
            intervalId;
intervalId = setInterval(fetchData,
            2000);

$('.campaign-select li').on("click", "a",
            function(event)
{
 window.clearInterval(intervalId);

            intervalId = setInterval(fetchData_id($(this).data('campaign-id')),
            2000);
});

The
first setInterval was correct, the function fetchData is
correctly loaded each 2 seconds.

But when I
click the .campaign-select li a element, the
fetchData_id is executed but only once, not repeated as
expected with setInterval.

Any
help?

Thanks.

Answer

You can't pass parameter in the
setInterval
function.

That being said, you should try this
:

$('.campaign-select
            li').on("click", "a", function(event){

            window.clearInterval(intervalId);
 var $this = $(this)
 intervalId =
            setInterval(function(){
 fetchData_id($this.data('campaign-id'))

            }), 2000);
});