0213_choma-utils
Version:
choma自定义工具函数库
49 lines (47 loc) • 1.2 kB
HTML
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>手写Promise</title>
</head>
<body>
<script src="../dist/atguigu-utils.js"></script>
<script>
const { Promise } = aUtils
new Promise((resolve, reject) => {
// resolve(1)
// setTimeout(() => {
reject(2)
// }, 1000);
})
.then(value => {
console.log('onResolve()1')
})
.then(
value => {console.log('onResolved()2', value)},
reason => {
console.log('onRejected2()', reason)
// return 3
// throw 4
// return new Promise((resolve, reject) =>resolve(5))
return new Promise((resolve, reject) =>reject(6))
}
).then(
value => {console.log('onResolved3()', value)},
reason => {
console.log('onRejected3()', reason)
// throw reason
}
).catch(reason => {
console.log('onRejected4()', reason)
}).then(
value => {console.log('onResolved5()', value)},
reason => {
console.log('onRejected5()', reason)
}
)
</script>
</body>
</html>