Angular 9 introduced several significant features and improvements, primarily centered around the Ivy compilation and rendering pipeline. Here are some of the key new features in Angular 9:
Ivy Compiler and Runtime by Default: Angular 9 marked the default integration of the Ivy compiler and runtime, which aims to improve performance and decrease the size of applications. This new compiler allows for faster re-build times, smaller bundle sizes, and better debugging capabilities[1][5].
Enhanced Internationalization (i18n): With Angular 9, the process of internationalization has been improved. The new Ivy compiler facilitates more efficient building of applications per locale, which can significantly speed up the build process[3].
Improved Type Checking: Angular 9 introduced stricter type checking for Angular templates, enhancing the reliability and maintainability of the code. This includes the fullTemplateTypeCheck and strictTemplates options that enforce stricter type constraints within templates, helping developers catch errors during development rather than at runtime[3].
Debugging Improvements: The Ivy compiler improves the debugging experience by providing more readable and helpful error messages. This change makes it easier for developers to understand and fix issues in their applications[3].
Component Harnesses: Angular 9 introduced Component Harnesses, which are classes that ...
