update snippets 78 - 96

snippets/objectFromPairs.md

@@ -6,5 +6,8 @@ Use `Array.reduce()` to create and combine key-value pairs.
 
 ```js
 const objectFromPairs = arr => arr.reduce((a, v) => (a[v[0]] = v[1], a), {});
-// objectFromPairs([['a',1],['b',2]]) -> {a: 1, b: 2}
+```
+
+```js
+objectFromPairs([['a',1],['b',2]]) -> {a: 1, b: 2}
 ```