added solution for caesar cipher

Kyle Maune · Kyle Maune · commit f05954ab74a7 · 2014-07-14T14:31:22.000-07:00
diff --git a/Medium Difficulty/caesarCipher.js b/Medium Difficulty/caesarCipher.js
@@ -0,0 +1,15 @@
+// coderbyte solution for caesar cipher
+// splashinn
+
+function caesarCipher(str, num) {
+  var result = new Array(str.length);
+	for (var i = 0; i < str.length; i++) {
+		if ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".indexOf(str[i]) !== -1) {
+			var code = str[i].charCodeAt(0) + num;
+			result[i] = String.fromCharCode(code);
+		} else {
+			result[i] = str[i];
+		}
+	}
+	return result.join("");
+}
