html
html
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<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<script>
//////// method 1 ////////
/// resolve one by one ///
let t = 500;
let p0 = new Promise((res, rej) => {
setTimeout(rej, t, "p0");
});
let p1 = new Promise((res, rej) => {
setTimeout(res, t*2, "p1");
});
let p2 = new Promise((res, rej) => {
setTimeout(rej, t*3, "p2");
});
let p3 = new Promise((res, rej) => {
setTimeout(res, t*4, "p3");
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css
css
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js
js
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