Simple? question about how to clearInterval() in Javascript

Question

My

 setInterval('name(var)',6000);

won't clear with:

clearInterval('name(var)');

or with:

clearInterval('name(var)');

why?

Answer 1

setInterval returns a handle of the interval, so you do it like this:

var myInterval = setInterval(function(){ name(var) }, 6000);
clearInterval(myInterval);

Note: Notice how I used a anonymous function instead of a string too.

Answer 2

You need to store the returned intervalID and pass it to clearInterval later.

var intervalID = setInterval('name(var)',6000);
clearInterval(intervalID);