add solution

vue-project/src/App.vue

@@ -1,15 +1,17 @@
 <script setup>
-const name = 'your-name'
-const textClass = 'text'
+import {ref} from "vue";
+
+const name = ref('')
+
+setTimeout(() => {
+  name.value = 'Bob'
+}, 1000)
 
 </script>
 
 <template>
-  <h1 :class="textClass">Hello {{ name }}</h1>
+  <h1>Hello {{ name }}</h1>
 </template>
 
 <style scoped>
-.text {
-  color: red;
-}
 </style>