Initial project skeleton

src/components/EssentialLink.vue

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+<template>
+  <q-item
+    clickable
+    tag="a"
+    target="_blank"
+    :href="link"
+  >
+    <q-item-section
+      v-if="icon"
+      avatar
+    >
+      <q-icon :name="icon" />
+    </q-item-section>
+
+    <q-item-section>
+      <q-item-label>{{ title }}</q-item-label>
+      <q-item-label caption>{{ caption }}</q-item-label>
+    </q-item-section>
+  </q-item>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+
+export default defineComponent({
+  name: 'EssentialLink',
+  props: {
+    title: {
+      type: String,
+      required: true
+    },
+
+    caption: {
+      type: String,
+      default: ''
+    },
+
+    link: {
+      type: String,
+      default: '#'
+    },
+
+    icon: {
+      type: String,
+      default: ''
+    }
+  }
+});
+</script>

src/components/ExampleComponent.vue

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+<template>
+  <div>
+    <p>{{ title }}</p>
+    <ul>
+      <li v-for="todo in todos" :key="todo.id" @click="increment">
+        {{ todo.id }} - {{ todo.content }}
+      </li>
+    </ul>
+    <p>Count: {{ todoCount }} / {{ meta.totalCount }}</p>
+    <p>Active: {{ active ? 'yes' : 'no' }}</p>
+    <p>Clicks on todos: {{ clickCount }}</p>
+  </div>
+</template>
+
+<script lang="ts">
+import {
+  defineComponent,
+  PropType,
+  computed,
+  ref,
+  toRef,
+  Ref,
+} from 'vue';
+import { Todo, Meta } from './models';
+
+function useClickCount() {
+  const clickCount = ref(0);
+  function increment() {
+    clickCount.value += 1
+    return clickCount.value;
+  }
+
+  return { clickCount, increment };
+}
+
+function useDisplayTodo(todos: Ref<Todo[]>) {
+  const todoCount = computed(() => todos.value.length);
+  return { todoCount };
+}
+
+export default defineComponent({
+  name: 'ExampleComponent',
+  props: {
+    title: {
+      type: String,
+      required: true
+    },
+    todos: {
+      type: Array as PropType<Todo[]>,
+      default: () => []
+    },
+    meta: {
+      type: Object as PropType<Meta>,
+      required: true
+    },
+    active: {
+      type: Boolean
+    }
+  },
+  setup (props) {
+    return { ...useClickCount(), ...useDisplayTodo(toRef(props, 'todos')) };
+  },
+});
+</script>

src/components/models.ts

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+export interface Todo {
+  id: number;
+  content: string;
+}
+
+export interface Meta {
+  totalCount: number;
+}