Why is the linked npm package not being written to package.json?

Question

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Good evening!
Actually, the question is in the title. Those packages that were linked before the creation of the package.json file were successfully registered in dependencies, everything that I installed globally and try to link after creating package.json is saved to the node modules folder, but is not written as a dependency. I tried to write npm link jade --save, it doesn't help either.
Thanks in advance for the hint.

Answer 1

I did not use the link - there was no need - but according to the docs https://docs.npmjs.com/cli/link it does not have the "--save" switch.
You may need a simple "npm install jade --save".