code: function cm2feetInches (cm) {
    const totalInches = (cm * 0.393701);
    let feet = Math.floor(totalInches / 12);
    let inches = Math.round(totalInches - (feet * 12));
    if (inches === 12) {
      feet += 1;
      inches = 0;
    }
    return { feet, inches };
  }
docs: convert a length in centimters to feet and inches components,
  rounding to the nearest inch