Have problem using export function in node js [duplicate] - node.js

Question

This question already has answers here:
Node.js - SyntaxError: Unexpected token import
(16 answers)
Closed 1 year ago.
The code for pug.compiler.js is:
/**
* Pug Utilities
*/
const {compileFile} =require('pug');
/**
*
* #param {String} relativeTemplatePath Pug template name
* #param {Object} [data] Object
* #returns {String} HTML
*/
export function compile(relativeTemplatePath, data){
let absoluteTemplatePath = process.cwd() + '/src/views/' + relativeTemplatePath + '.pug';
let compiledTemplate = compileFile(absoluteTemplatePath)(data);
return compiledTemplate;
};
The error is :
export function compile(relativeTemplatePath, data){
^^^^^^
SyntaxError: Unexpected token 'export'
at wrapSafe (internal/modules/cjs/loader.js:984:16)
at Module._compile (internal/modules/cjs/loader.js:1032:27)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
at Module.load (internal/modules/cjs/loader.js:933:32)
at Function.Module._load (internal/modules/cjs/loader.js:774:14)
at Module.require (internal/modules/cjs/loader.js:957:19)
at require (internal/modules/cjs/helpers.js:88:18)
at Object.<anonymous> (D:\ProgramData\projects\nodejs\whatsapp\test\app.js:11:22)
at Module._compile (internal/modules/cjs/loader.js:1068:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
So I have a problem understanding how do I use this export function. I think it should work right?

Answer 1

The problem is NodeJS considers module by default as CommonJS Modules.
So instead of export you should use module.exports, or if you're using NodeJS v13+ you can enable ES Modules by either:
Changing the extension of your file to mjs
Adding "type": "module" property to your package.json
Using module.exports should be like:
function compile(relativeTemplatePath, data){
let absoluteTemplatePath = process.cwd() + '/src/views/' + relativeTemplatePath + '.pug';
let compiledTemplate = compileFile(absoluteTemplatePath)(data);
return compiledTemplate;
};
module.exports = {compile};