Merge pull request #82 from nathzz30/rotateToRightArray

Created a function rotation to made the rotation of an array #53 and #52

Array/Rotation.js

@@ -0,0 +1,26 @@
+/**
+ * A function that takes 3 parameters to make a rotation in an array.
+ * @example arr=[1,2,3,4,5,6,7,8,9], rotation(arr, 3, "right") returns [4,5,6,7,8,9,1,2,3]
+ * @function
+ * @param {Array} arr - The array to rotate.
+ * @param {Number} n - The number of rotations.
+ * @param {string} direction - The direction of the rotation.
+ * @returns {Array}
+ */
+
+const rotation = (arr, n, direction) => {
+  if (direction === "right") {
+    for (let i = 0; i < n; i++) {
+      let firstElement = arr.shift();
+      arr.push(firstElement);
+    }
+  } else {
+    for (let i = 0; i < n; i++) {
+      let lastElement = arr.pop();
+      arr.unshift(lastElement);
+    }
+  }
+  return arr;
+};
+
+export default rotation;