Rename js snippets

snippets/js/s/first-n-elements.md

@@ -0,0 +1,21 @@
+---
+title: First n elements
+type: snippet
+language: javascript
+tags: [array]
+author: chalarangelo
+cover: digital-nomad-16
+dateModified: 2022-07-22T05:00:00-04:00
+---
+
+Gets the first `n` elements of an array.
+
+- Use `Array.prototype.slice()` with a start value of `0` and an end value of `n` to get the first `n` elements of `arr`.
+
+```js
+const firstN = (arr, n) => arr.slice(0, n);
+```
+
+```js
+firstN(['a', 'b', 'c', 'd'], 2); // ['a', 'b']
+```