ReinRaus

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

ReinRaus

# -*- coding: utf-8 -*-
import re
 
def count_substrings_re( string, substring ):
    substring_re = '(?=(%s))' %  re.escape( substring )
    return len( re.findall( substring_re, string ) )

def count_substrings_re_opt(string, substring):
    if len( substring )==1:
        substring_re = re.escape( substring )