Encountering not defined error when calling function

Question

I'm working on a API integration with the ES6 module system and jQuery. I want to use re-use my addToCart function, that is why I placed it into a separate file. But when calling it I get following error:

Uncaught SyntaxError: Export 'addToCart' is not defined in module

Answer 1

you should have the latest version of Node.js installed (or, at least 13.2.0+). Then do one of the following, as described in the documentation:

Option 1

In the nearest parent package.json file, add the top-level "type" field with a value of "module". This will ensure that all .js and .mjs files are interpreted as ES modules. You can interpret individual files as CommonJS by using the .cjs extension.

// package.json

{
  "type": "module"
}

Option 2

Explicitly name files with the .mjs extension. All other files, such as .js will be interpreted as CommonJS, which is the default if type is not defined in package.json.