add the old snippet md files

old_snippets/destructure-array-javascript.en.md

@@ -0,0 +1,27 @@
+---
+title: "destructuring an array in javascript"
+date: 2021-11-29T09:22:30+01:00
+draft: false
+seo_description: "Turns out you don't need blank variables at all, simply using commas is enough"
+snippet_types:
+- js
+---
+
+How I use to destructure Arrays:
+```js
+const nums = [1,2,3];
+const [a, _, c];
+(a === 1) // true
+(c === 3) // true
+```
+
+Problem is this **_** is not needed and will cause problems with some ESLint
+setups. For example they might not allow unused variables. Turnes out you
+can just leave that spot blank!
+
+```js
+const nums = [1,2,3];
+const [a, , c];
+(a === 1) // true
+(c === 3) // true
+```