feat: 找不同

Author: sl1673495

位运算/找不同-389.js

@@ -0,0 +1,15 @@
+/**
+ * @param {string} s
+ * @param {string} t
+ * @return {character}
+ */
+let findTheDifference = function (s, t) {
+  let rest = t.charCodeAt(t.length - 1)
+  for (let i = 0; i < s.length; i++) {
+    let charS = s[i]
+    let charT = t[i]
+    rest ^= charS.charCodeAt(0)
+    rest ^= charT.charCodeAt(0)
+  }
+  return String.fromCharCode(rest)
+}