Add reverse.js

Author: alejandrosobko

reverse.js

@@ -0,0 +1,14 @@
+/**
+ *
+ * @param {Array} arr array of elements
+ * @returns {Array} a new array with the elements in the inverse order
+ */
+ function reverse(arr) {
+  if (arr.length === 0) return []
+  const x = arr[0]
+  const xs = arr.slice(1)
+  return reverse(xs).concat([x])
+}
+
+console.log(reverse([1,2,3]))
+console.log(reverse([]))