properties in the `package.json` file are used to manage different types of dependencies in a Node.js project. Here's the difference between them:
- The `dependencies` property is used to list the packages that are required for the project to run in a production or deployment environment.
- These packages are necessary for the application's core functionality and are typically required at runtime.
- When you install the project dependencies using `npm install`, the packages listed in the `dependencies` section are installed.
- The `devDependencies` property is used to list the packages that are only required during development, such as testing frameworks, build tools, and development-specific utilities.
- These packages are not necessary for the application to run in a production environment but are helpful during development and testing phases.
- When you install the project dependencies along with dev dependencies using `npm install`, the packages listed in both the `dependencies` and `devDependencies` sections are installed.
By separating dependencies into `dependencies`
, you can distinguish between packages required for production and those required for development. This separation helps reduce the size of the production deployment by excluding unnecessary development-related packages.
To summarize, `dependencies`
includes packages needed for the application to run in a production environment, while `devDependencies`
includes packages required during development and testing but are not necessary for the production deployment.