Rename js snippets

snippets/js/s/unique-elements-in-array.md

@@ -0,0 +1,21 @@
+---
+title: Unique values in array
+type: snippet
+language: javascript
+tags: [array]
+cover: shelf-plant
+dateModified: 2020-10-22T20:24:44+03:00
+---
+
+Finds all unique values in an array.
+
+- Create a `Set` from the given array to discard duplicated values.
+- Use the spread operator (`...`) to convert it back to an array.
+
+```js
+const uniqueElements = arr => [...new Set(arr)];
+```
+
+```js
+uniqueElements([1, 2, 2, 3, 4, 4, 5]); // [1, 2, 3, 4, 5]
+```