feat: Add Vue3 exercises and interview plan

- Introduced Vue3 exercises covering composable API, reactivity, lifecycle hooks, and built-in components.
- Added structured interview plan for frontend candidates focusing on HTML, CSS, JavaScript, TypeScript, and Vue.
- Included starter files for each exercise and detailed README documentation for guidance.
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charlie
2026-03-24 23:02:58 +08:00
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# 练习 4生命周期和模板 ref
## 目标
学会在组合式 API 里使用生命周期钩子,并通过模板 `ref` 获取 DOM。
## 你要练什么
- `onMounted`
- `onUpdated`
- `onUnmounted`
- 模板 `ref`
## 任务
- 页面挂载后自动聚焦输入框
- 数据更新后输出日志
- 页面卸载前清理定时器
## 文件
- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/08-vue3/04-lifecycle-and-template-ref/starter.html)
- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/08-vue3/04-lifecycle-and-template-ref/starter.js)