Nodejs - a function inside my module is not a function

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Javascript

export

modules

Hi everyone,
I'm trying to make a todolist and it's several days I can't solve my problem. I've a module from which there is a todo class and its methods. I export the object and call its constructor in my main app. Also, in the main app, I try to use one of the object method (object.print()) and it generates an error because it is not seen as a function...

Here you can find the main files of my code: Todolist that doesn't work (yet) · GitHub[^]

What I have tried:

I tried to write the file "todo.js" in different ways, allways the constructor was fine, but not the printing method. I don't know if the mistake comes from the module and the way I export it, or if it's due to a cast issue.