Make changes to code to improve readability

lib/breadcrumb.js

@@ -3,24 +3,25 @@ const url = require('url')
 module.exports = (modifier) => {
   return (request, response, next) => {
     const baseUrl = url.format({ protocol: request.protocol, host: request.get('host') })
-    const parts = url.parse(request.url).pathname.split('/').filter(Boolean)
-    let items = []
+    const urlComponents = url.parse(request.url).pathname.split('/').filter(Boolean)
+    let breadcrumbs = []
 
-    items.push({ label: 'Home', url: baseUrl })
-    items = items.concat(parts.map((part, i, array) => {
+    breadcrumbs.push({ label: 'Home', url: baseUrl })
+    // Map components of the path to breadcrumbs with resolvable URLs
+    let mappedComponents = urlComponents.map((component, i, array) => {
       const path = array.slice(0, i + 1).join('/')
       return {
-        label: part.replace(/-/g, ' '),
+        label: component.replace(/-/g, ' '),
         url: url.resolve(baseUrl, path),
         path: path
       }
     })
-    )
+    breadcrumbs = breadcrumbs.concat(mappedComponents)
     if (modifier) {
-      items = items.map(modifier)
+      breadcrumbs = breadcrumbs.map(modifier)
     }
     // Make it global
-    request.app.locals.breadcrumb = items
+    request.app.locals.breadcrumb = breadcrumbs
     next()
   }
 }