nhensh

const getDigitsFromValue = (value = '') => value.replace(/(-(?!\d))|[^0-9|-]/g, '') || ''

const padDigits = digits => {
  const desiredLength = 3
  const actualLength = digits.length

  if (actualLength >= desiredLength) {
    return digits
  }

nhensh

.font(@family, @size, @weight, @lineHeight, @letterSpacing){
    font-family: @family;
    font-size:@size;
    font-weight:@weight;
    line-height:@lineHeight; /* inherit */
    letter-spacing:@letterSpacing; /* inherit */
}