What are the best practices for deploying an Angular app using Angular CLI?

What are the best practices for deploying an Angular app using Angular CLI?

When deploying an Angular app with Angular CLI, consider the following best practices: 1. Use the production build with ng build --prod for optimized performance. 2. Implement lazy loading for modules to reduce initial load time. 3. Use environment variables to manage different configurations for development and production. 4. Optimize assets by compressing images and using appropriate formats. 5. Set up proper caching strategies to enhance load times.

How can I manage environment variables in Angular?

You can manage environment variables in Angular by creating different environment files in the src/environments folder. For example, you can have environment.ts for development and environment.prod.ts for production. Use the fileReplacements option in angular.json to replace the environment files during the build process.

What is lazy loading and how do I implement it?

Lazy loading is a technique that loads modules only when they are needed, rather than at the initial load. To implement it, you can use the Angular Router. Define your routes with the loadChildren property, pointing to the module you want to lazy load. For example: path: 'feature', loadChildren: () => import('./feature/feature.module').then(m => m.FeatureModule).

Are there any tools to help with performance optimization?

Yes, tools like Google Lighthouse can help analyze your Angular app's performance. Additionally, you can use the Angular CLI's built-in profiling tools to identify bottlenecks and optimize your application.