update

05-es6-plus/05-promise-basics/starter.js

@@ -10,3 +10,17 @@ function loadTracks() {
 // 1. 调用 loadTracks()
 // 2. 成功时更新状态和输出内容
 // 3. 失败时更新状态
+async function load() {
+  const status = document.getElementById("status")
+  status.textContent = "加载中"
+  try {
+    const a = await loadTracks()
+    status.textContent = "加载成功"
+    const output = document.getElementById("output")
+    output.textContent = a
+  } catch (error) {
+    status.textContent = "加载失败"
+  }
+
+}
+load()