Anagram function does not consider string length

[rezasohrabi]

The current implementation of the validAnagrams function in the repository does not consider the length of the input strings when determining if they are anagrams. For example, it expects to return false but returns true in cases like validAnagrams("abcd", "abcde")

function validAnagrams(str1, str2) {
  const freqCount1 = str1.split('').reduce((acc, char) => {
    acc[char] = (acc[char] || 0) + 1;
    return acc;
  }, {});

  const freqCount2 = str2.split('').reduce((acc, char) => {
    acc[char] = (acc[char] || 0) + 1;
    return acc;
  }, {});

  return Object.keys(freqCount1).every(
    (char) => freqCount1[char] === freqCount2[char]
  );
}

This function also needs to check the length of strings to be equal at the beginning:

 if (str1.length !== str2.length) {
        return false;
    }