Reversing Fun

reversing-fun/index.js

@@ -0,0 +1,12 @@
+// https://www.codewars.com/kata/reversing-fun/javascript
+
+function flipNumber(n) {
+  let cnt = 0;
+  const arr = [...n];
+  const res = [];
+  while (1) {
+    let c = arr[++cnt % 2 ? 'pop' : 'shift']();
+    if (!c) return res.join``;
+    res.push(c);
+  }
+}