Update background.js

Use `const` instead of `var`
brave · Miyayes · Apr 8, 2020 · Apr 6, 2020 · Apr 6, 2020 · 36c3672e9e2bc2b71cf86bda55c036460cde139a
commit 36c3672e9e2bc2b71cf86bda55c036460cde139a
diff --git a/js/background.js b/js/background.js
@@ -1,4 +1,4 @@
-//var arrayOfBackgrounds = ['images/stars3.jpg', 'images/london-web33.jpg'];
-var arrayOfBackgrounds = ['images/stars4.jpg'];
-    var choice = Math.floor(Math.random() * arrayOfBackgrounds.length);
+//const arrayOfBackgrounds = ['images/stars3.jpg', 'images/london-web33.jpg'];
+const arrayOfBackgrounds = ['images/stars4.jpg'];
+    const choice = Math.floor(Math.random() * arrayOfBackgrounds.length);
     document.querySelector('.background').style.backgroundImage = 'url(' + arrayOfBackgrounds[choice] + ')';