feat: add TypeScript lessons and learning panel

- 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.
This commit is contained in:
charlie
2026-03-19 10:06:11 +08:00
parent 69a4ae3178
commit f3bdaa4e88
146 changed files with 5951 additions and 9 deletions

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# 练习 6async / await
## 目标
学会用 `async` / `await` 改写一个 Promise 流程。
## 你要练什么
- `async`
- `await`
- `try...catch`
## 任务
- 写一个 `async` 函数等待课程配置
- 成功时渲染结果
- 失败时更新状态
## 文件
- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/06-async-await/starter.html)
- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/06-async-await/starter.js)
- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/06-async-await/answer.html)
- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/06-async-await/answer.js)

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>async / await</title>
</head>
<body>
<p id="status">等待加载</p>
<pre id="output"></pre>
<script src="./answer.js"></script>
</body>
</html>

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function loadConfig() {
return new Promise((resolve) => {
setTimeout(() => {
resolve({
title: "现代 JS 面板",
level: "进阶",
});
}, 800);
});
}
const status = document.getElementById("status");
const output = document.getElementById("output");
async function renderConfig() {
status.textContent = "加载中...";
try {
const config = await loadConfig();
status.textContent = "加载完成";
output.textContent = `${config.title} - ${config.level}`;
} catch (error) {
status.textContent = "加载失败";
}
}
renderConfig();

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>async / await</title>
</head>
<body>
<p id="status">等待加载</p>
<pre id="output"></pre>
<script src="./starter.js"></script>
</body>
</html>

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function loadConfig() {
return new Promise((resolve) => {
setTimeout(() => {
resolve({
title: "现代 JS 面板",
level: "进阶",
});
}, 800);
});
}
// 任务:
// 1. 写一个 async 函数
// 2. 用 await 等待 loadConfig()
// 3. 用 try...catch 处理流程