d0d8be443b
- 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.
练习 7：composable 和异步状态
目标
学会把可复用逻辑抽成 composable，并管理 loading / error / data。
你要练什么
- composable
ref- 异步状态
loadingerror
任务
- 把课程请求逻辑抽成
useCourses - 页面加载时调用它
- 显示 loading
- 请求成功后渲染列表
- 请求失败时显示错误信息