feat(js): honorary map array fn

Author: Vetlix

honorary-one-line-wonders/javascript/vetlix_array_map.js

@@ -0,0 +1,5 @@
+const map = (arr, cb) => {
+  let i = arr.length, result = Array(i);
+  while (i--) result[i] = cb(arr[i], i, arr);
+  return result;
+};