Stop setInterval call in JavaScript

setInterval() returns an interval ID, which you can pass to clearInterval():

var refreshIntervalId = setInterval(fname, 10000);

/* later */
clearInterval(refreshIntervalId);

See the docs for setInterval() and clearInterval().

If you set the return value of setInterval to a variable, you can use clearInterval to stop it.

var myTimer = setInterval(...);
clearInterval(myTimer);

In nodeJS you can you use the "this" special keyword within the setInterval function.

You can use this this keyword to clearInterval, and here is an example:

setInterval(
    function clear() {
            clearInterval(this) 
       return clear;
    }()
, 1000)

When you print the value of this special keyword within the function you output a Timeout object Timeout {...}