将 nodejs 样式的导出转换为 typescript 样式的导出

Question

So, in Node.js to export primary and "secondary" functions I would do:

 module.exports = (amount) => { return amount } module.exports.calc = (amount) => { return amount * amount } module.exports.stringify = (amount) => { return String(amount) }

And then call it from other files like so:

 const amountix = require('./amountix') amountix(20) // 20 amountix.calc(20) // 400 amountix.stringify(20) // "20"

But now I need to convert the this module from Node.js to TypeScript. I tried the following:

 export default (amount: number): number => { return amount; } export function calc(amount: number): number { return amount * amount; } export function stringify(amount: number): string { return String(amount); }

 import * as amountix from "./amountix.ts" amountix(20) // ERROR: This expression is not callable. amountix.calc(20) // 400 amountix.stringify(20) // "20"

But it gives me error when I call the "primary" function.

How do I do it the right way?

Answer 1

import * as amountix from './amountix';

// call the default method
amountix.default(20);

Or

import amountix, { calc, stringify } from './amountix';

amountix(20);