Add semicolon for tdd exports

test/mapObject/mapObject.js

@@ -2,4 +2,4 @@ const mapObject = (arr, fn) =>
 (a => (
 (a = [arr, arr.map(fn)]), a[0].reduce((acc, val, ind) => ((acc[val] = a[1][ind]), acc), {})
 ))();
-module.exports = mapObject
+module.exports = mapObject;