From f3c09828649dee5e4a439539e23eb7a0150178ee Mon Sep 17 00:00:00 2001
From: shashank <47443963+guptashak90@users.noreply.github.com>
Date: Tue, 18 Jun 2019 11:54:33 +0530
Subject: [PATCH] Create areAnagrams.js

---
 src/areAnagrams.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/areAnagrams.js

diff --git a/src/areAnagrams.js b/src/areAnagrams.js
new file mode 100644
index 0000000..b9445ca
--- /dev/null
+++ b/src/areAnagrams.js
@@ -0,0 +1,27 @@
+export const areAnagram = (word1, word2) => {
+  if (typeof word1 !== 'string' || typeof word2 !== 'string') {
+    throw new Error('This requires two strings to be passed.')
+  }
+
+  var normalizedWord1 = word1.replace(/[^A-Za-z]+/g, '').toLowerCase();
+  var normalizedWord2 = word2.replace(/[^A-Za-z]+/g, '').toLowerCase();
+
+  var counts = [];
+  var word1Length = normalizedWord1.length;
+  var word2Length = normalizedWord2.length
+
+  if (word1Length !== word2Length) { return false; }
+
+  for (var i = 0; i < word1Length; i++) {
+    var index = normalizedWord1.charCodeAt(i)-97;
+    counts[index] = (counts[index] || 0) + 1;
+  }
+
+  for (var i = 0; i < word2Length; i++) {
+    var index = normalizedWord2.charCodeAt(i)-97;
+    if (!counts[index]) { return false; }
+    else { counts[index]--; }
+  }
+
+  return true;
+}