npm

NPM install configurations §

1. Install package without updating package.json

npm install <package name> --no-save

2. Install package and update dependencies in package.json (default)

npm install <package name> --save

3. Install package and update devDependencies in package.json

npm install <package name> --save-dev

4. Install package and update optionalDependencies in package.json

npm install <package name> --save-optional

Note

Dev dependencies are packages needed by the project in the dev environment and not in the production environment

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Refs §

1. https://stackoverflow.com/questions/36022926/what-do-the-save-flags-do-with-npm-install
2. https://www.geeksforgeeks.org/difference-between-dependencies-devdependencies-and-peerdependencies/