Add semicolon for tdd exports

test/takeWhile/takeWhile.js

@@ -2,4 +2,4 @@ const takeWhile = (arr, func) => {
 for (let i of arr.keys()) if (func(arr[i])) return arr.slice(0, i);
 return arr;
 };
-module.exports = takeWhile
+module.exports = takeWhile;