Update countBy.md

2020-07-25 11:34:21 +03:00
parent 2b6b92bc71
commit 885b0c2af6
1 changed files with 2 additions and 1 deletions
--- a/snippets/countBy.md
+++ b/snippets/countBy.md
@ -19,4 +19,5 @@ const countBy = (arr, fn) =>
 ```js
 countBy([6.1, 4.2, 6.3], Math.floor); // {4: 1, 6: 2}
 countBy(['one', 'two', 'three'], 'length'); // {3: 2, 5: 1}
-```
+countBy([{ count: 5 }, { count: 10 }, { count: 5 }], item => item.count) // {5: 2, 10: 1}
+```