Add apply transform over each element in array problem

javascript/2635-apply-transform-over-each-element-in-array.js

@@ -0,0 +1,12 @@
+/**
+ * @param {number[]} arr
+ * @param {Function} fn
+ * @return {number[]}
+ */
+var map = function(arr, fn) {
+    const result = [];
+    for (let index = 0; index < arr.length; index++) {
+        result.push(fn(arr[index], index));
+    }
+    return result;
+};