added second solution for swap II

Kyle Maune · Kyle Maune · commit 7690a3648600 · 2014-07-14T16:10:16.000-07:00
diff --git a/Medium Difficulty/swapII2.js b/Medium Difficulty/swapII2.js
@@ -0,0 +1,44 @@
+// coderbyte solution for swap II
+// splashinn
+
+function swapCase(str) {
+  var str = str.split("");
+  str = str.map(function(char){
+    var code = char.charCodeAt(0);
+    if (code >= 97 && code <= 122) return char.toUpperCase();
+    if (code >= 65 && code <= 90) return char.toLowerCase();
+    return char;
+  });
+  return str.join("");
+}
+
+function SwapII(str) {
+  var str = swapCase(str);
+
+  var prevDigit = -1;
+  var prevPos = -1;
+  var newStr = [];
+
+  for (var i = 0; i < str.length; i++) {
+    var c = str.charCodeAt(i);
+    if (c >= 48 && c <= 57) {
+      if (prevDigit >= 0) {
+        newStr[prevPos] = str.charAt(i);
+        newStr[i] = prevDigit;
+        prevDigit = -1;
+        prevPos = -1;
+      } else {
+        newStr[i] = str.charAt(i);
+        prevDigit = str.charAt(i);
+        prevPos = i;
+      }
+    } else if(c >= 97 && c <= 122 || c >= 65 && c <= 90) {
+      newStr[i] = str.charAt(i);
+    } else {
+      newStr[i] = str.charAt(i);
+      prevDigit = -1;
+      prevPos = -1;
+    }
+  }
+  return newStr.join("");
+}
