findNewSymbols method
Implementation
int findNewSymbols(String a, String b) {
final symbols = [
formater.symbols.DECIMAL_SEP,
formater.symbols.GROUP_SEP,
'.'
];
a = fixNumbers(a).replaceAll(RegExp(r'[^0-9 . ]'), 's');
b = b.replaceAll(RegExp(r'[^0-9 . ]'), 's');
return (a.characters.where((char) => char == 's').length -
b.characters.where((char) => char == 's').length);
}