What is a Module?

Hearing of the word "Modules or Node_modules" and wondering exactly what it is?

Now you're at the right place, think of a box containing some pieces of items it could be simply anything {some pieces of metals, used items and the likes...}.

Now that box is exactly what Module is and those contents are your simple and complex lines of codes, so I am saying your {index.html, style.css, app.tsx, header.js} and so more are simply your modules and the lines of codes in it are what made up the module.

So Bingo! now you know what a module is, come back here for another pieces of my contents...