function isSimpleRange(classRange) {
  const {from, to} = classRange;
  return (
    from.codePoint >= DIGIT_0_CP && from.codePoint <= DIGIT_9_CP &&
    to.codePoint >= DIGIT_0_CP && to.codePoint <= DIGIT_9_CP
  ) || (
    from.codePoint >= UPPER_A_CP && from.codePoint <= UPPER_Z_CP &&
    to.codePoint >= UPPER_A_CP && to.codePoint <= UPPER_Z_CP
  ) || (
    from.codePoint >= LOWER_A_CP && from.codePoint <= LOWER_Z_CP &&
    to.codePoint >= LOWER_A_CP && to.codePoint <= LOWER_Z_CP
  );
}
function isSimpleRange(classRange) {
  const {from, to} = classRange;
  return (
    from.codePoint >= DIGIT_0_CP && from.codePoint <= DIGIT_9_CP &&
    to.codePoint >= DIGIT_0_CP && to.codePoint <= DIGIT_9_CP
  ) || (
    from.codePoint >= UPPER_A_CP && from.codePoint <= UPPER_Z_CP &&
    to.codePoint >= UPPER_A_CP && to.codePoint <= UPPER_Z_CP
  ) || (
    from.codePoint >= LOWER_A_CP && from.codePoint <= LOWER_Z_CP &&
    to.codePoint >= LOWER_A_CP && to.codePoint <= LOWER_Z_CP
  );
}
function isSimpleRange ( classRange ) { const { from , to } = classRange ; return ( from . codePoint >= DIGIT_0_CP && from . codePoint <= DIGIT_9_CP && to . codePoint >= DIGIT_0_CP && to . codePoint <= DIGIT_9_CP ) || ( from . codePoint >= UPPER_A_CP && from . codePoint <= UPPER_Z_CP && to . codePoint >= UPPER_A_CP && to . codePoint <= UPPER_Z_CP ) || ( from . codePoint >= LOWER_A_CP && from . codePoint <= LOWER_Z_CP && to . codePoint >= LOWER_A_CP && to . codePoint <= LOWER_Z_CP ) ; }
Checks if a range is included either in 0-9, a-z or A-Z
@param classRange
@returns {boolean}
Checks if a range is included either in 0 - 9 a - z or A - Z