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.
26 lines
990 B
Markdown
26 lines
990 B
Markdown
# 练习 12：prepend、classList.remove 和链接默认行为
|
||
|
||
## 目标
|
||
|
||
补齐几个常见但容易漏掉的 DOM 细节操作。
|
||
|
||
## 你要练什么
|
||
|
||
- `prepend()`
|
||
- `classList.remove()`
|
||
- 链接点击事件
|
||
- `preventDefault()`
|
||
|
||
## 任务
|
||
|
||
- 点击“插入到最前面”时，把一条新消息插入列表顶部
|
||
- 点击“清除高亮”时，移除全部高亮类名
|
||
- 点击帮助链接时，阻止默认跳转，并在页面显示提示信息
|
||
|
||
## 文件
|
||
|
||
- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/04-dom-events-async/12-prepend-remove-and-link-default/starter.html)
|
||
- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/04-dom-events-async/12-prepend-remove-and-link-default/starter.js)
|
||
- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/04-dom-events-async/12-prepend-remove-and-link-default/answer.html)
|
||
- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/04-dom-events-async/12-prepend-remove-and-link-default/answer.js)
|