extract some code into functions

scrape.js

@@ -164,12 +164,21 @@ const map_event = (edge) => {
   };
 };
 
-(async () => {
-  fs.mkdir('./events/img', { recursive: true }).catch(console.error);
+const create_images_directory = (images_directory) =>
+  fs.mkdir(images_directory, { recursive: true }).catch(console.error);
+
+const open_browser = async (images_directory) => {
   const browser = await puppeteer.launch({
     headless: false,
     args: ['--disable-dev-shm-usage'],
   });
+  return browser;
+};
+
+(async () => {
+  create_images_directory('./events/img');
+
+  const browser = await open_browser();
 
   let events = [];