Rounding direction names accepted by modern Intl.NumberFormat.
ceil and floor round toward positive and negative infinity; expand and
trunc round away from and toward zero. The half* modes apply the named
direction only to ties, with halfEven selecting the nearest even result.
Rounding direction names accepted by modern
Intl.NumberFormat.ceilandfloorround toward positive and negative infinity;expandandtruncround away from and toward zero. Thehalf*modes apply the named direction only to ties, withhalfEvenselecting the nearest even result.