Production Mode

Rule

You can check this option in your angular.json file :

{
  "projects": {
    "{my-project}": {
      "architect": {
        "build": {
          "configurations": {
            "production": {
              "outputHashing": "all",
              "optimization": true
            }
          }
        }
      }
    }
  }
}

• Improved performance - Production mode disables development-specific checks and validations, resulting in faster runtime execution and better overall application performance.
• Reduced bundle size - Angular removes development-only code in production builds, eliminating debugging information and assertions that aren't needed in production.
• Disabled change detection warnings - Angular suppresses various developer warnings and extra change detection cycles that are helpful during development but unnecessary in production.
• Tree-shaking optimization - Production builds enable more aggressive tree-shaking, removing unused code to minimize the final bundle size.
• Ahead-of-Time (AOT) compilation - Production mode typically uses AOT compilation, which pre-compiles templates and components rather than compiling them at runtime, improving initial load time.
• Enhanced security - Some debug information that might expose internal details about your application structure is removed in production mode.
• Error handling - Production mode changes how errors are handled, providing more user-friendly error experiences rather than detailed developer-oriented messages.