f3bdaa4e88
- Introduced a new script to check TypeScript lesson files for errors. - Created a main TypeScript file to render lessons and their details. - Added lesson definitions with starter and answer codes. - Implemented a user interface for navigating and running lessons. - Styled the application with CSS for a better user experience. - Updated README to reflect the new TypeScript section and usage instructions.
练习 8：fetch 和 JSON
目标
补齐 fetch() 和 res.json() 这一层最常见的现代异步写法。
你要练什么
fetch()awaitres.json()- 接口数据渲染
任务
- 点击按钮后发起一次
fetch - 等待返回的响应对象
- 调用
res.json()解析 JSON - 把课程标题和内容渲染到页面