Rename js snippets

snippets/js/s/every-nth-element.md

@@ -0,0 +1,20 @@
+---
+title: Every nth element
+type: snippet
+language: javascript
+tags: [array]
+cover: dark-leaves-6
+dateModified: 2020-10-19T18:51:03+03:00
+---
+
+Returns every `nth` element in an array.
+
+- Use `Array.prototype.filter()` to create a new array that contains every `nth` element of a given array.
+
+```js
+const everyNth = (arr, nth) => arr.filter((e, i) => i % nth === nth - 1);
+```
+
+```js
+everyNth([1, 2, 3, 4, 5, 6], 2); // [ 2, 4, 6 ]
+```