How to properly export a function\array?

Question

JavaScript

Fetch get an array of users with jsonplaseholder. This array must be exported to another file and there you can already get what you need from the array (the name property of each of the users). Faced with the fact that the .map() method is not a function

const fetch = require("node-fetch");

module.exports = {
    getMain1: async(req, res) => {

    },
    getMain2: new Promise(async function (resolve, reject) {
        let response = await fetch('https://jsonplaceholder.typicode.com/users');
        resolve(response.json());
        reject();
    }),
    myValue: 'getMain2'
};

import {myValue} from './getPieData';

let dataForSeries = myValue.map(item => item.name.length);

export default {
    options: {
        chart: {
            height: 350,
            type: 'line'
        },
        dataLabels: {
            enabled: false
        }
    },
    series: [{
        name: 'Pie Plot1',
        type: 'area',
        data: dataForSeries
    }]
}

mistake:

TypeError: _getPieData__WEBPACK_IMPORTED_MODULE_0__.myValue.map is not a function
Module../src/components/Pie/PieData.js
C:/Dev/chartsandtable/src/components/Pie/PieData.js:3
  1 | import {myValue} from './getPieData';
  2 | 
> 3 | let dataForSeries = myValue.map(item => item.name.length);
  4 | 
  5 | export default {
  6 |     options: {

Answer 1

You most likely need to import the getMain2 object , then it will be mapped