Files
front-end-example/04-dom-events-async/08-promise-and-render/answer.js
charlie f3bdaa4e88 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.
2026-03-19 10:06:11 +08:00

31 lines
858 B
JavaScript

function fakeFetchCourses() {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(["DOM 获取元素", "事件监听", "异步基础"]);
}, 800);
});
}
const loadButton = document.getElementById("load-btn");
const statusText = document.getElementById("status-text");
const courseList = document.getElementById("course-list");
loadButton.addEventListener("click", function () {
statusText.textContent = "加载中...";
courseList.innerHTML = "";
fakeFetchCourses()
.then(function (courses) {
courses.forEach(function (course) {
const item = document.createElement("li");
item.textContent = course;
courseList.appendChild(item);
});
statusText.textContent = "加载完成";
})
.catch(function () {
statusText.textContent = "加载失败";
});
});