Question

I need to clear the timeout and I couldn’t figure how. I’m not sure what to pass on the clearTimeout method from window object… any tips?

                for (var k = 0; k <= arr2.length; k++) {

                  (function (k) {
                      window.setTimeout(function () {

                          //do something

                      }, 6000 * k);
                  })(k);

               }

Answer 1

Since you are creating arr2.length amount of timers, if you need “kill” a specific timer, you need an array of references.

//create a reference storage
var timerRefs = [];

for (var k = 0; k <= arr2.length; k++) {
    (function (k) {

        //reference the timeout to a variable
        var ref = window.setTimeout(function () {
            //do something
        }, 6000 * k);

        //store that reference in the array
        timerRefs.push(ref);
    })(k);
}

to clear a specific one, do:

clearTimeout(timerRefs[N]); //where N is the index of that timer