Check to see if two provided strings are anagrams of each other. One string is an anagram of another if it uses the same characters in the same quantity. Only consider characters, not spaces or punctuation. Consider capital letters to be the same as lower case

anagrams.js

function anagrams(stringA, stringB) {
  return cleanString(stringA) === cleanString(stringB);
}

function cleanString(str) {
  return str
    .replace(/[^\w]/g, '')
    .toLowerCase()
    .split('')
    .sort()
    .join('');
}

// OR
// function anagrams(stringA, stringB) {
//   const mappedStringA = buildCharMap(stringA);
//   const mappedStringB = buildCharMap(stringB);

//   if (Object.keys(mappedStringA).length !== Object.keys(mappedStringB).length)
//     return false;

//   for (let char in mappedStringA) {
//     if (mappedStringA[char] !== mappedStringB[char]) {
//       return false;
//     }
//   }

//   return true;
// }

// function buildCharMap(str) {
//   const charMap = {};
//   for (char of str.replace(/[^\w]/g, "").toLowerCase()) {
//     charMap[char] = charMap[char] + 1 || 1;
//   }
//   return charMap;
// }