How to add your library to the code editor?

Question

JavaScript

I wrote my own simple library, which is a set of objects with methods. Question: how to connect it to the VS Code code editor so that auto-substitution works when creating / editing other files?
Example:
Library:
libraryName.objectName = {};
libraryName.objectName.move = function (){...}
Usage:
write libraryName see the available set of objects to substitute
write libraryName.objectName. we see a set of methods of the object
It seems to be a banal question, but it is constantly googled that is not right.

Answer 1

He should see it anyway, unless of course you connect it as needed.
Through importor require, or simply at the beginning of the file, insert the entire code.
For example:

// library.js
class Core {
    // code...
}

module.exports = Core;

// app.js
const library = require('./library.js');