Function f

docs/tests/v2/es6/js/sanddance.js:89134–89143

(t)

  }

  var f = function (t) {
    var v = field(t);

    if (v == null) {
      return null;
    } else {
      v = Math.max(start, Math.min(+v, stop - step));
      return start + step * Math.floor(EPSILON + (v - start) / step);
    }
  };

  f.start = start;
  f.stop = stop;