update snippets 78 - 96

snippets/pick.md

@@ -7,5 +7,8 @@ Use `Array.reduce()` to convert the filtered/picked keys back to an object with
 ```js
 const pick = (obj, arr) =>
   arr.reduce((acc, curr) => (curr in obj && (acc[curr] = obj[curr]), acc), {});
-// pick({ 'a': 1, 'b': '2', 'c': 3 }, ['a', 'c']) -> { 'a': 1, 'c': 3 }
+```
+
+```js
+pick({ 'a': 1, 'b': '2', 'c': 3 }, ['a', 'c']) -> { 'a': 1, 'c': 3 }
 ```