Merge pull request #336 from psyonara/better_count_occurences

Use Python's built-in count method to do the counting for us.

snippets/count_occurences.md

@@ -5,11 +5,11 @@ tags: list,beginner
 
 Counts the occurrences of a value in a list.
 
-- Increment a counter for every item in the list that has the given value and is of the same type.
+- Use `list.count()` to count the number of occurrences of `val` in `lst`.
 
 ```py
 def count_occurrences(lst, val):
-  return len([x for x in lst if x == val and type(x) == type(val)])
+  return lst.count(val)
 ```
 
 ```py