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README.md

@@ -83,10 +83,10 @@ var capitalize = str => str.slice(0, 1).toUpperCase() + str.slice(1);
 
 ### Count occurrences of a value in array
 
-Use `filter()` to create an array containing only the items with the specified value, count them using `length`.
+Use `reduce()` to increment a counter each time you encounter the specific value inside the array.
 
 ```js
-var countOccurrences = (arr, value) => arr.filter(v => v === value).length;
+var countOccurrences = (arr, value) => arr.reduce((a, v) => v===value ? a + 1 : a + 0, 0);
 ```
 
 ### Current URL

snippets/count-occurrences-of-a-value-in-array.md

@@ -1,12 +1,6 @@
 ### Count occurrences of a value in array
 
-Use `filter()` to create an array containing only the items with the specified value, count them using `length`.
-
-```js
-var countOccurrences = (arr, value) => arr.filter(v => v === value).length;
-```
-
-Use reduce() to increment a counter each time you encounter the specific value; does not create new array like filter().
+Use `reduce()` to increment a counter each time you encounter the specific value inside the array.
 
 ```js
 var countOccurrences = (arr, value) => arr.reduce((a, v) => v===value ? a + 1 : a + 0, 0);