What is Angular 18? What are its top features and updates

Introduction

Google has launched a new version of Angular, which was dropped on May 22, 2024. This latest release focuses on Angular 18 features and updates, and how it enhances the overall development process. The newer version offers improved performance compared to Angular 17, which was released a year prior.

What’s new in Angular 18

Angular 18 aims to improve performance and provide better scalability while also providing a rich user experience.

Change Detection

Angular has always relied on zone.js for the development of applications, and this is the first time they have experimented with going zoneless to decrease production issues. In the newer versions, the change detection components can be detected and used to improve performance.

Faster Compilation

Angular 18 comes with improved compilation capacity, making notable improvements in this area. Several optimizations boost the speed and efficiency of the applications.

Route Redirects

Dynamic route redirects allow more adaptive routing based on runtime conditions. This is one of the main highlight of Angular 18 features and updates. Dynamic routing is achieved using route configurations. The property can accept a function that returns a string, allowing dynamic redirects based on runtime conditions.

Improved Performance with Ivy

Ivy is an Angular rendering engine that has been improved to reduce bundle size and improve performance without increasing load time. Ivy removes unused code from the bundle and reduces the bundle size by 25-40%.

Enhanced Form Control State Events

The latest version of Angular provides a more robust and flexible way to track changes in form control states. These events are observable and emit their types: Pristine Event, Status Event, Touched Event, and Value Change Event.

Server Side Rendering

Angular 18 features and updates has introduced features like “Event Replay,” which replays the page when the page is not hydrated. This lets users interact with the page even when it is not fully loaded. The latest version of Angular enhances the performance and ease of integration.

TypeScript Support

Specify template types more precisely, making it easier to catch errors when using template literal types. This ensures better code quality and a simplified development process.

Efficient Code Splitting

Efficient code splitting breaks big complex code into smaller chunks and loads them only when required. This reduces the bundle size of the application, leading to faster loading time and improved user experience.

Faster Debugging

Angular DevTools enhancements improve code debugging. These enhancements include hydration icons, hydrated portions, and error duration visualization. Faster code debugging provides more actionable information about the application.

App Hosting

Angular 18 features and updates clarified that it supports robust app hosting, including Firebase app hosting integration, hybrid rendering support and easy deployment. This provides a scalable and reliable solution for hosting angular packages.

Error Handling

Angular 18 provides better error handling for HTTP requests. Client-side error handling includes try-catch blocks to handle mistakes. This version also provides better error-logging capabilities, allowing developers to log errors.

Stable Material and CDK

Angular Material and CDK have been stabilized, providing a more robust and accessible component library. All Angular Material and CDK components and primitives are now fully hydration compatible.

Facts about Angular 18

Deferred views, which allow for lazy loading of dependencies, have moved from the developer stage to the stable stage.
Route redirections can now be defined using functions.
Change detection operates independently without intermediaries.
The Angular DevTools have been updated to provide better insights into the application, performance, and dependency levels.
Forms API has been updated for easy creation and validation.
A new router API has been introduced, providing more flexibility and control over management.

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