ReferenceError: exports is not defined in ES module scope

[the-other-dev]

When upgrading from version 1.4.5 to 1.5.0 I get an error when trying to import the module.

I am using import cron from 'cron-validate' to import the module. My project is set up as a module ("type": "module" in the package.json) and my tsconfig.json sets the following things:

        "target": "ESNext",
        "lib": ["ES2019", "DOM"],
        "module": "ESNext",
        "moduleResolution": "node",
        "esModuleInterop": true,

The full error message is:

ReferenceError: exports is not defined in ES module scope
This file is being treated as an ES module because it has a '.js' file extension and './node_modules/cron-validate/package.json' contains "type": "module". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.
 ❯ node_modules/cron-validate/lib/index.js:5:23

I assume it has something to do with the tsconfig.json in this repository declaring "module": "commonjs" (https://github.com/Airfooox/cron-validate/blob/master/tsconfig.json#L8) and declaring it a module in the package.json: https://github.com/Airfooox/cron-validate/blob/master/package.json#L38

The change to "type": "module" came with this commit: 532fedb

In version 1.4.5 the import works without issues.

[Airfooox]

Hopefully fixed in 1.5.2 for the time being.

Could you give me an update if everything worked out?

[OultimoCoder]

It doesn't work for me using 1.5.2 and es modules.

import cron from 'cron-validate'
console.log(cron(''))
cron is not a function

console.log(cron)
{ default: [Function: cron] }

[boonyarit-iamsaard]

It doesn't work for me using 1.5.2 and es modules.

import cron from 'cron-validate'
console.log(cron(''))
cron is not a function

console.log(cron)
{ default: [Function: cron] }

I have reproduced with 1.5.2 in ESM project

import cron from "cron-validate"

console.log('empty cron -> ', cron(''));
console.log('cron -> ', cron('0 0 * * *'));

// result 👇
// empty cron ->  Err { error: [ "Expected 5 values, but got 1. (Input cron: '')" ] }
// cron ->  Valid {
//   value: {
//     seconds: undefined,
//     minutes: '0',
//     hours: '0',
//     daysOfMonth: '*',
//     months: '*',
//     daysOfWeek: '*',
//     years: undefined
//   }
// }

@OultimoCoder need help to provide further details/configurations on your side
Best,

[the-other-dev]

@Airfooox It works for me with version 1.5.2. Thank you for the swift action, much appreciated!

[PantherX99]

doesnt work for me with 1.5.2 and module

import cron from 'cron-validate';

const x = cron('30 * * * * *');
console.log(x.isValid());

TypeError: cron is not a function