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bpinedah/promise-chain.js

Created December 19, 2018 00:41
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promise-chain.js
const p1 = (n) => new Promise(resolve => {
setTimeout(() => resolve(n * 2), 3000);
});
const p2 = (n) => new Promise(resolve => {
setTimeout(() => resolve(n + 1), 2000);
});
const p3 = (n) => new Promise(resolve => {
setTimeout(() => resolve(n + 3), 1000);
});
p1(10)
.then(r => p2(r))
.then(r => p3(r))
.then(r => console.log(r));
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