javascript - 从 Javascript 函数中导出变量

Question

我想要的只是获取 userId 变量的值来使用任何东西。

async function getMyData(){
    const token = '';
    spotifyApi.setAccessToken(token);
    
    const data = await spotifyApi.getMe();
    let userId = data.body.id;

    return userId;
}

const userId = getMyData();
console.log(userId)

console.log(userId) 对我说:{Promise

Answer 1

对于任何async函数，不要忘记在函数执行之前使用await

/// ./getMyData.js
export async function getMyData(){
    // ...

    return userId;
}

/// ./otherFile.js

import {getMyData} from './getMyData.js'

(async function () {
   const userId = await getMyData();
   console.log(userId)
})()