javascript - 将密码散列到对象中并接收 Promise { <pending> }

Question

我正在学习散列字符串密码并将它们存储在对象列表中。

const bcrypt = require('bcrypt')

var users = []

async function hashPass(pass)
{
    try {
        const salt = await bcrypt.genSalt(10)
        
        console.log(`Hashing Password: ${pass}`)

        const hashedPass = await bcrypt.hash(pass, salt)

        console.log(`Hashed Password: ${hashedPass}`)

        return hashedPass

    } catch (error) {
        console.log(error)
    }
}

const password = hashPass('pass')

users.push({
    'ID': 0,
    'Name': 'Ali',
    'Email': 'alihaisul<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1c3271795c7b717d7570327f7371" rel="noreferrer noopener nofollow">[email protected]</a>',
    'Password': password
})

console.log(users)

输出:

[
  {
    ID: 0,
    Name: 'Ali',
    Email: '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b2d3dedbdad3dbc1c7de9cdfd7f2d5dfd3dbde9cd1dddf" rel="noreferrer noopener nofollow">[email protected]</a>',
    Password: Promise { <pending> }
  }
]
Hashing Password: pass
Hashed Password: $2b$10$r52Lu1K.WxOEcAdyeMBV4eR3EPGRXsgJjktJMXFGY5F7a.Q6yoH1C

我不断在输出中收到“Promise {pending}”。我研究并尝试使用 async、await、甚至“then()”。我在这里缺少什么？

Answer 1

由于 hashPass 函数使用 async/await 关键字，它会返回一个 Promise 对象，并且您将其作为输出。

在将新用户对象推送到users数组之前，您需要等待hashPass函数的结果。您可以通过以下方式修改代码来实现此目的:

const bcrypt = require('bcrypt');
var users = [];

async function hashPass(pass) {
  try {
    const salt = await bcrypt.genSalt(10);        
    console.log(`Hashing Password: ${pass}`);
    const hashedPass = await bcrypt.hash(pass, salt);
    console.log(`Hashed Password: ${hashedPass}`);

    return hashedPass;
  } catch (error) {
    console.log(error);
  }
}

async function createUser() {
  const password = await hashPass('pass');

  users.push({
    'ID': 0,
    'Name': 'Ali',
    'Email': '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0c6d6065646d657f79602261694c6b616d6560226f6361" rel="noreferrer noopener nofollow">[email protected]</a>',
    'Password': password
  });

  console.log(users);
}


createUser();