ConstReadonlyDEV: "development"Development environment ("development")
ReadonlyPROD: "production"Production environment ("production")
ReadonlyTEST: "test"Testing environment ("test")
ReadonlyUNKNOWN: "unknown"Unknown or undefined environment
Represents the standard runtime environments used in application development.
This enum is typically used with process.env.NODE_ENV to determine whether the app is running in development, production, or test mode.