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src/components/Btn.vue

@@ -0,0 +1,11 @@
+<template>
+  <button :data-size="size">Label</button>
+</template>
+
+<script setup>
+const { size } = defineProps({
+  size: String,
+});
+</script>
+
+<style scoped></style>

src/views/Home.vue

@@ -2,7 +2,11 @@
   <h1>{{ data.content.title }}</h1>
 </template>
 <script setup>
+import Btn from "../components/Btn.vue";
+
 const { data } = defineProps({
   data: Object,
 });
+
+console.log(data);
 </script>