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.
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05-es6-plus/05-promise-basics/README.md
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05-es6-plus/05-promise-basics/README.md
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# 练习 5:Promise 基础
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## 目标
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学会用 Promise 表达异步结果。
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## 你要练什么
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- Promise
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- `.then()`
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- `.catch()`
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## 任务
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- 调用模拟请求函数
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- 成功时渲染课程数据
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- 失败时渲染错误状态
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## 文件
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- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/05-promise-basics/starter.html)
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- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/05-promise-basics/starter.js)
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- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/05-promise-basics/answer.html)
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- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/05-promise-basics/answer.js)
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05-es6-plus/05-promise-basics/answer.html
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05-es6-plus/05-promise-basics/answer.html
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Promise 基础</title>
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</head>
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<body>
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<p id="status">等待加载</p>
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<pre id="output"></pre>
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<script src="./answer.js"></script>
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</body>
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</html>
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05-es6-plus/05-promise-basics/answer.js
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05-es6-plus/05-promise-basics/answer.js
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function loadTracks() {
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return new Promise((resolve) => {
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setTimeout(() => {
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resolve(["模板字符串", "模块化", "async/await"]);
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}, 700);
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});
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}
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const status = document.getElementById("status");
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const output = document.getElementById("output");
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status.textContent = "加载中...";
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loadTracks()
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.then((tracks) => {
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status.textContent = "加载完成";
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output.textContent = tracks.join("\n");
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})
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.catch(() => {
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status.textContent = "加载失败";
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});
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05-es6-plus/05-promise-basics/starter.html
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05-es6-plus/05-promise-basics/starter.html
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Promise 基础</title>
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</head>
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<body>
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<p id="status">等待加载</p>
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<pre id="output"></pre>
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<script src="./starter.js"></script>
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</body>
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</html>
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05-es6-plus/05-promise-basics/starter.js
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05-es6-plus/05-promise-basics/starter.js
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function loadTracks() {
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return new Promise((resolve) => {
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setTimeout(() => {
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resolve(["模板字符串", "模块化", "async/await"]);
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}, 700);
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});
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}
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// 任务:
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// 1. 调用 loadTracks()
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// 2. 成功时更新状态和输出内容
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// 3. 失败时更新状态
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