hi

_CONTAINER/_my_DS_repo/DS-n-Algos/_Extra-Practice/anagrams/index.js

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+// --- Directions
+// Check to see if two provided strings are anagrams of eachother.
+// 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
+// --- Examples
+//   anagrams('rail safety', 'fairy tales') --> True
+//   anagrams('RAIL! SAFETY!', 'fairy tales') --> True
+//   anagrams('Hi there', 'Bye there') --> False
+
+function anagrams(stringA, stringB) {
+  return cleanString(stringA) === cleanString(stringB);
+}
+
+function cleanString(str) {
+  return str
+    .replace(/[^\w]/g, '')
+    .toLowerCase()
+    .split('')
+    .sort()
+    .join('');
+}
+
+module.exports = anagrams;
+
+// function anagrams(stringA, stringB) {
+//   const aCharMap = buildCharMap(stringA);
+//   const bCharMap = buildCharMap(stringB);
+//
+//   if (Object.keys(aCharMap).length !== Object.keys(bCharMap).length) {
+//     return false;
+//   }
+//
+//   for (let char in aCharMap) {
+//     if (aCharMap[char] !== bCharMap[char]) {
+//       return false;
+//     }
+//   }
+//
+//   return true;
+// }
+//
+// function buildCharMap(str) {
+//   const charMap = {};
+//
+//   for (let char of str.replace(/[^\w]/g, '').toLowerCase()) {
+//     charMap[char] = charMap[char] + 1 || 1;
+//   }
+//
+//   return charMap;
+// }