const findMostFrequentWord = (text) => {
  const words = text.split(" ");

  const wordCount = words.reduce((acc, word) => {
    acc[word] = (acc[word] || 0) + 1;
    return acc;
  }, {});

  let mostFrequentWord = "";
  let maxCount = 0;

  for (const word in wordCount) {
    if (wordCount[word] > maxCount) {
      mostFrequentWord = word;
      maxCount = wordCount[word];
    }
  }

  return mostFrequentWord;
};

console.log(findMostFrequentWord("hello world hello world hello"));
console.log(findMostFrequentWord("apple banana apple orange orange orange"));
console.log(findMostFrequentWord("one two three two three three"));

const years = Array.from({ length: 20 }, (_, i) => i + 2020);

const findMissingNumbers = (numbers: number[]) => {
  const missingNumbers: number[] = [];

  for (let i = 0; i < numbers.length - 1; i++) {
    let current = numbers[i];
    const next = numbers[i + 1];

    while (current + 1 < next) {
      current++;
      missingNumbers.push(current);
    }
  }

  return missingNumbers;
};

console.log(years);
console.log(findMissingNumbers([1, 2, 4, 6, 12, 15]));

const isPalindrome = (str: string) => {
  const cleanedStr = str.replace(/[^a-zA-Z0-9]/g, "").toLowerCase();
  const reversedStr = cleanedStr.split("").reverse().join("");
  return \`\${str} is \${cleanedStr === reversedStr ? "" : "not "}a palindrome\`;
};

console.log(isPalindrome("radar"));
console.log(isPalindrome("hello"));