s2e19 stop and propagate

app.js

@@ -12,6 +12,9 @@ var app = new Vue({
     updateCoordinates(event){
       this.x = event.clientX;
       this.y = event.clientY;
+    },
+    dummy(event){
+      event.stopPropagation();
     }
   }
 })

index.html

@@ -9,7 +9,9 @@
     <div id='app'>
       <button @click="increase(2, $event)">Click Me</button>
       <p>{{ counter }}</p>
-      <p v-on:mousemove="updateCoordinates">Coordinates {{x}} {{y}} </p>
+      <p v-on:mousemove="updateCoordinates">Coordinates {{x}}, {{y}}
+        <span v-on:mousemove.stop.prevent=""> DEAD SPOT</span>
+      </p>
     </div>
 
     <script src="app.js" charset="utf-8"></script>