javascript - 从已解决的Promise对象中检索值

我试图从一系列承诺中获取价值。

  async function retrieveIssues() {

  let rawdata = fs.readFileSync(argv.i);
  let issues = JSON.parse(rawdata);

  const issuesArray = issues.Issues;

  const promises = issuesArray.map(issue => getIssueInfo(issue));

  await Promise.all(promises);


  // promises is now array of current issue information
  console.log(promises)
  console.log(promises[0])


}

所以我拥有的是一系列Promise对象，如下所示：

    Promise {
  { title: 'Work out why we can\'t run the GAX tests with parallelism',
  body: 'We\'ve had to disable parallelism in GAX tests, as otherwise the FakeScheduler tests hang, although only on Travis... but it\'s not clear why. At some point, we should investigate that...\n',
  labels: [ [Object] ] } }

那么，例如，我将如何获得标题？

最佳答案

当您想使用等待的promises调用的结果时，仍在使用Promise.all变量尝试访问值。例如：

const results = await Promise.all(promises);


// promises is now array of current issue information
console.log(results);
console.log(results[0]);

关于javascript - 从已解决的Promise对象中检索值，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/52283873/

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javascript - 从已解决的Promise对象中检索值