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@@ -0,0 +1,103 @@
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+<!DOCTYPE html>
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+<html lang="en">
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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>Document</title>
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+ </head>
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+ <body>
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+ <script>
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+ // async function fn1() {
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+ // console.log(1);
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+ // await fn2();
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+ // console.log(2);
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+ // }
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+ // async function fn2() {
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+ // console.log("fn2");
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+ // }
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+ // fn1()
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+ // fn2();
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+ // console.log(3);
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+ // async function async1() {
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+ // console.log('async1 start')
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+ // await async2()
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+ // console.log('async1 end')
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+ // setTimeout(() => {
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+ // console.log('timer1')
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+ // }, 300)
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+ // }
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+ // async function async2() {
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+ // setTimeout(() => {
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+ // console.log('timer2')
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+ // }, 400)
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+ // console.log('async2')
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+ // }
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+ // async1()
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+ // setTimeout(() => {
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+ // console.log('timer3')
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+ // }, 200)
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+ // console.log('start')
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+
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+ // async function fn1(){
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+ // console.log(333)
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+ // await fn2()
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+ // console.log(111)
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+ // }
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+ // async function fn2(){
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+ // throw new Error('rejected')
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+ // }
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+ // async function fn2(){
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+ // console.log(4)
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+ // }
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+ // fn1()
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+ // console.log(2222)
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+
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+ // async function fn1(){
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+ // console.log(1)
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+ // await fn2()
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+ // console.log(2)
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+ // setTimeout(()=>{
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+ // console.log(3)
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+ // },1000)
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+ // }
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+ // async function fn2(){
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+ // console.log(4)
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+ // await fn3()
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+ // console.log(5)
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+ // setTimeout(()=>{
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+ // console.log(31)
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+ // },500)
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+ // }
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+ // async function fn3(){
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+ // setTimeout(()=>{
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+ // console.log(6)
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+ // },2000)
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+ // }
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+ // fn1()
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+ // console.log(7)
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+
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+ async function a1() {
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+ console.log(4)
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+ await a2();
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+ console.log(1)
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+ }
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+ async function a2() {
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+ await console.log(2);
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+ await console.log(7)
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+ }
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+ a1();
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+ async function async1() {
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+ await async2();
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+ console.log("async1");
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+ return "async1 success";
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+ }
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+ async function async2() {
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+ return new Promise((resolve, reject) => {
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+ console.log("async2");
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+ reject("error");
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+ });
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+ }
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+ async1().then((res) => console.log(res));
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+ </script>
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+ </body>
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+</html>
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