text: function toCamelCase(str) {
    return str.replace(new RegExp("-.|_.", 'g'), (match) => match.charAt(1).toUpperCase());
  }
  
  console.log(toCamelCase(""), "");
  console.log(toCamelCase("the_stealth_warrior"), "theStealthWarrior");
  console.log(toCamelCase("The-Stealth-Warrior"), "TheStealthWarrior");
  console.log(toCamelCase("A-B-C"), "ABC");
  