numfmt/lib/clamp.js

Full Excel style number formatting

export function clamp (number) {
  if (number === 0) {
    return number;
  }
  const d = Math.ceil(Math.log10(number < 0 ? -number : number));
  const mag = 10 ** (16 - Math.floor(d));
  return isFinite(mag) ? Math.round(number * mag) / mag : 0;
}