react-yearly-calendar-ts/src/utils.ts

// Grabbed from the underscore.js source code (https://github.com/jashkenas/underscore/blob/master/underscore.js#L691)
export function range(start: number, stop: number, step?: number) {
  if (stop == null) {
    stop = start || 0;
    start = 0;
  }
  step = step || 1;

  const length = Math.max(Math.ceil((stop - start) / step), 0);
  const range = Array(length);

  for (let idx = 0; idx < length; idx++, start += step) {
    range[idx] = start;
  }

  return range;
}