How do I update devDependencies in NPM?

Question

npm update seems to just update the packages in dependencies, but what about devDependencies.

Right now you can install

Answer 1

To update package.json in addition to the local modules, run

npm update --save-dev

Alternatively, the same command to save time

npm update -D

You can view the full detail of update, or any command for that matter through

npm help