init

2023-05-01 19:37:40 +08:00
commit da2c0fadf7
133 changed files with 29002 additions and 0 deletions
--- a/Html-Javascript/33-异步代码同步化2.html
+++ b/Html-Javascript/33-异步代码同步化2.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+
+<body>
+
+    <script>
+
+        // 定义一个Promise方法
+        function func() {       // 正常       异常
+            return new Promise((resolve, reject) => {
+                setTimeout(() => {
+                    let data = { n: "想不到吧, 我三秒后才出现, 你们抓不到我的" }
+                    if (Math.random() > 0.5) {
+                        resolve(data);
+                    } else {
+                        reject("完蛋了, bbq");
+                    }
+                }, 1000);
+            });
+        }
+        // func().then() // 正常
+        // func().catch() // 异常
+        func()
+            .then(res => {
+                console.log(res);
+            })
+            .catch(e => {
+                console.error(e);
+            })
+        console.log("end");
+
+    </script>
+
+</body>
+
+</html>