How to decrease audio volume while looping in javascript and jquery

Question

I want to control audio volume by decreasing it while function loop, but my below code doesn't seems to work.

var count = 0;
var rotate= 5;
var saudio = $("#saudio").get(0);

function tryitnow(){
count++;
saudio.volume = parseInt(saudio.volume)- parseInt(0.1); 
  if (count != rotate) {
    setTimeout(function() {
      tryitnow()
    }, 1000);

  }
}

Answer 1

parseInt(0.1); will return 0 because it will round the float 0.1 so each time you are reducing the volume by 0

You don't need to parseInt(saudio.volume) since it's already a number too.

So this should work

var count = 0;
var rotate = 5;
var saudio = $("#saudio").get(0);

function tryitnow() {
  count++;
  saudio.volume = saudio.volume - 0.1;
  if (count != rotate) {
    setTimeout(function() {
      tryitnow()
    }, 1000);

  }
}