Range slider custom values, no step

1

I would like create a range slider with these values 1, 2, 2.5, 3.5, 4, 4.5, 5, 6

is it possible?. Thanks.

2

i dont thikn this is a good solution, kind of works, but is hacky

range.on('change', function (r, v) {
  if (v > 2 && v <= 4.5) {
    r.step = 0.5
  } else {
    r.step = 1
  }
})