const removeExclamation = (str, count) => {
  // Ваш код здесь
};
 
console.log(removeExclamation("!!He!!llo, !world!", 5));

const removeExclamation = (str, count) => {
  if (typeof str !== "string") {
    return undefined;
  }
 
  let newStr = str;
  let removedCounter = 0;
 
  for (let i = 0; i < str.length; i++) {
    if (removedCounter === count) {
      return newStr;
    } else if (str[i] === "!") {
      newStr = newStr.replace(str[i], "");
      removedCounter += 1;
    }
  }
 
  return newStr;
};
 
console.log(removeExclamation("!!He!!llo, !world!", 5)); // Hello, world!