I have a react application. I'm using react-scripts build. As I understand (from this link), the package-lock.json doesn't affect the build and the build will take any packages it needs that are imported in the files (regardless if they are dev dependencies or not). How can I check if a certain package was installed on a deployed environment? The reason why I'm asking is that we want to verify that no dev dependencies or any of it sub dependencies are part of deployment to customers.