Why is 'node_modules' so large? - Quora. The module structure used to be completely nested, meaning multiple versions of the same modules could be nested within each other.

Why do we need node modules?

You can think of the node_modules folder like a cache for the external modules that your project depends upon. When you npm install them, they are downloaded from the web and copied into the node_modules folder and nodejs is trained to look for them there when you import them (without a specific path).

Why is node so bad?

The biggest drawback of Node. js even now is its inability to process CPU bound tasks. ... js is a runtime environment that executes JavaScript on the server side. Being a frontend programming language, JavaScript uses a single thread to process tasks quickly.