如何修复异步forEach推送？[副本]

Question

[
  {
    "id": 1,
    "name": "Wallet Name",
    "wallet_type": "MN",
    "icon": "fa fa-bank",
    "color": "#000000",
    "credit_limit": 3000,
    "due_day": 22
  }
]

[
  {
    "id": 1,
    "name": "Wallet Name",
    "wallet_type": "MN",
    "icon": "fa fa-bank",
    "color": "#000000",
    "credit_limit": 3000,
    "account_value": 1200.55,
    "due_day": 22
  }
]

async index(req, res) {
    const wallets = await Wallet.findAll({
      where: {},
      attributes: [
        'id',
        'name',
        'wallet_type',
        'icon',
        'color',
        'credit_limit',
        'due_day',
      ],
      order: [['name', 'ASC']],
    });

    const finalObject = [];

    wallets.forEach(async wallet => {
      const currentItem = wallet.dataValues;
      const { id } = await currentItem;
      const { sum_credits } = await WalletsResume.sumCredits(id);
      const { sum_debits } = await WalletsResume.sumDebits(id);
      const sum_account_value = (sum_credits - sum_debits).toFixed(2);
      currentItem.account_value = sum_account_value;
      finalObject.push(currentItem);
      console.log(`pushed ${id}`);
    });

    console.log(`-------------------------`);
    console.log(finalObject);
    return res.json(finalObject);
  }

[]

我不知道如何修复它（我可以更改我所有的代码）

太感谢你们了！

Answer 1

Foreach不等待异步调用。切换到for.in/for.of或常规for循环。

使用for-of的示例

async index() {
  // Fetch wallets here

  for (const wallet of wallets) {
    const currentItem = wallet.dataValues;
    const { id } = await currentItem;
    const { sum_credits } = await WalletsResume.sumCredits(id);
    const { sum_debits } = await WalletsResume.sumDebits(id);
    const sum_account_value = (sum_credits - sum_debits).toFixed(2);
    currentItem.account_value = sum_account_value;
    finalObject.push(currentItem);
    console.log(`pushed ${id}`);
  }

  // Then continue normally
}

使用for-in的示例

async index() {
  // Fetch wallets here

  for (const walletIndex in wallets) {
    const currentItem = wallets[walletIndex].dataValues;
    // rest of code as above
  }

}