Added options object for optional router in app object

Author: erenworld

src/app.js

@@ -1,12 +1,17 @@
 import { mountDOM } from "./mount-dom";
 import { destroyDOM } from './destroy-dom'
 import { hElement } from "./h";
+import { NoopRouter } from "./routing/hash-router";
 
-export function createApp(RootComponent, props = {}) {
+export function createApp(RootComponent, props = {}, options = {}) {
     let parentEl = null;
     let isMounted = false;
     let vdom = null;
 
+    const context = {
+        router: options.router || new NoopRouter(),
+    }
+
     // Reset internal properties of the app.
     function reset() {
         parentEl = null;
@@ -21,15 +26,18 @@ export function createApp(RootComponent, props = {}) {
             }
             parentEl = _parentEl;
             vdom = hElement(RootComponent, props);
-            mountDOM(vdom, parentEl);
+            // mountDOM(vdom, parentEl);
+            mountDOM(vdom, parentEl, null, { appContext: context });
 
+            context.router.init();
             isMounted = true;
         },
         unmount() {
             if (!isMounted) {
                 throw new Error('The application is not mounted');
             }
             destroyDOM(vdom);
+            context.router.destroy();
             reset();
         }
     }