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const p = new Promise(resolve => { setTimeout(() => { console.log(111); resolve() }, 1000) }) p.then(() => { return new Promise(resolve => { setTimeout(() => { console.log(222); resolve() }, 2000)...

function time() { let promise = new Promise(resolve => { setTimeout(() => { console.log(new Date()); resolve() }, 3000) }) promise.then(() => time()) }