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  • Everything you need to know about Angular 15?

    As we are about to reach the end of 2022, there is still one more thing to look forward to for all tech professionals. Namely, Angular version 15 has finally been made available, allowing all the programmers to eliminate all those errors in Angular 14 easily. It came out on November 16th.

    Angular 14 was decent, but with Angular 15, you can maintain stability, which has an added advantage in terms of making development more accessible and the whole process running smoothly.

    This article covers all the features of Angular 15 in detail.

    What’s new in Angular 15V?

    A new version of Angular is released every six months, and Angular v15 has just been released to the developer community.

    The Angular v15 release contains a handful of incremental updates tailored to address bottlenecks within the Angular framework and developer pain points. This is one of the more exciting and significant updates we have seen across all the Angular versions.

    Angular 15 allows a single component to work in Angular Elements, routers, HTTP clients, and elsewhere. Aside from enlarging the development process, the 'Standalone components serve as a fantastic alternative to NgModules.

    When you have the reliable Angular Development company like Prishusoft, they perform the best practices to upgrade your application with latest technology and packed features.

    What are the New features in Angular 15?

    This update brings many refinements in comparison to previous versions, namely increased stability and expanded supportability, which will inevitably elevate developer experience and performance.

    • Stable Standalone APIs

      It is possible to build Angular applications without defining NgModules using the standalone components API in Angular 14. Due to thorough performance observations and amendments, Angular 15's standalone component API has reached its degree of stability.

      As a result of the collaborative work conducted by the Angular developer community, this newly seen stability has made it possible to combine standalone components with HttpClient, Angular Elements, and many other Angular components at the same time.

    • Introduction to the Directive Composition API

      The reusability of directives in your favorite framework is something that all developers love. The team heard many requests for this API from the GitHub community, and finally, the API was built.

      Angular v15 now incorporates the inspiration from the feature request submitted on GitHub. As a result, the Directive Composition API has been introduced, elevating the usability of the code to another level and taking it to a higher level.

      By utilizing the ultimate code reuse strategy, developers can make the most of Angular and enhance host elements with the help of directives to get the most out of Angular with the help of directives.

      Furthermore, all of the above can be achieved using an Angular compiler that can support all of this.

    • Improved Stack Traces

      The Angular v15 update makes debugging Angular applications with stack traces easier and makes debugging more straightforward.

      An Angular developer's team ensured that it was possible to trace more of the development code than the libraries it calls. It has been possible to improve the error messages by achieving this achievement.

      Developers used to receive one-liner error messages when they discovered a bug with the previous Angular versions, leading to a lengthy fix process.

    • MDC-based components that are stable

      For Angular material components, the developer team has worked hard to refactor its components to improve stability. In addition, these components comply with Angular Material Design Specifications and offer better accessibility.

      It has been mostly the DOM and CSS that have been refactored here. Some styles in the old Angular applications will need to be adjusted due to the new update on responsiveness. This is especially true when CSS overrides internal elements of the migrated components.

    • CDK Listbox

      It is a collection of behaviour primitives that helps develop UI components. In Angular v15, the CDK Listbox primitive is added, enabling developers to shape Listbox interactions as desired based on WAI-ARIA Listbox patterns.

      Here, an array of behaviour interactions include keyboard interactions, support for bidi layouts, and focus management. The directives come up with various ARIA roles that can be assigned to each host element, regardless of which one you use.

    • Experimental esbuild support

      As part of the recent Angular 14 update, there was experimental support for esbuild, a faster bundler that simplifies the javascript pipeline, enabling quick builds to be done with fast esbuild.

      In Angular 15, there comes new experimental support for the ng build --watch support, Angular Sass, SVG templates, and file replacement support.

    • Boilerplate reduction in guards

      We can take the following example to illustrate how guards enable users to verify their details without being logged in - to understand the concept better:

      The LoginService, a component within this task, contains the main logic within this program. Within the LoginService, there is only one trigger invoked to trigger the guard: the isLoggedIn () trigger within the callback function. Despite the clear structure of this code segment, many boilerplate sections should be reduced to improve their performance because it contains many boilerplate sections.

      The following code can be refactored using Functional Router Guards to include all the boilerplates needed for the code to work, as presented below.

      Functional Guards are compostable, which makes them the best. As a result, it can be used for creating factor-like functions, which take a configuration as input and can return a function, guard, or guard-like object that solves a concern.

      The speed performance of any web application depends heavily on how quickly images load. NgOptimizedImage was introduced in older versions of the Angular framework to speed up image loading. However, it wasn't perfect. As of Angular 15, the directive has become more stable and reliable as a means of loading images.

    • Automatic Language Service Import

      As part of the version, you will be able to import different components used in the template auto-magically from the language service. A new standalone component can also be generated using the --standalone option of the ng g component command.

      This is a simple place to put what you get from ng new. It is possible to reduce the configuration in the first step by removing three elements: the test.ts file, the polyfills file, and the environment file. Once you have specified Angular in angular.json, it is possible to use it.

    • HTTP with provideHttpClient

      With Angular 15, you can use the provideHttpClient() function to provide the HttpClient in an app where modules are optional, just as we use the provideRouter() function to provide the Router API for Angular. In the same way, HTTP interceptors follow the same logic.

    How to Upgrade to Angular 15?

    Angular v15 is easy to upgrade, but you need to be aware of the support extensions, cancellations, and deprecations-breaking changes so that you can review and refactor your existing Angular application.

    • Several node.js versions have been extended by Angular v15 to extend its support for the node.js versions 14.20.x, 16.13.x, and 18.10.x version, as well as terminating support for node.js version 14.[15-19].x and 16[10-12].x.

    • There are currently only TypeScript versions 4.8 and older supported by Angular 15 for the time being.

    • Implementing Angular v15 support for your application is very simple by running the given command: ng update @angular/core@15 @angular/cli@15 from the project directory.

    • Using the @keyframe name format, the data can now be parsed into “@keyframes host-my-cmp_foo [... }. “

    Complying with this breaking change means:
    • Specify a ShadowDom or None as the encapsulation view.

    • This rule should be defined in the global stylesheet

    • Create your code for this rule.

    • There is a possibility of triggering an error if the class contains an explicit constructor.

    • This update removes the enableIvy call from tsconfig.json since Ivy is only a rendering engine in this update.

    • As a result of the removal of canParse, parsing methods now require analyzing and hint parameters.

    • When RouterOutlet has completed detecting changes, it will instantiate the component.

    • To define the time zone, you must now use the replacement function DATE_PIPE_DEFAULT_OPTIONS instead of DATE_PIPE_DEFAULT_TIMEZONE.

    • Using the RouterLink directive to handle elements with href attributes is now required since routerLinkWithHref has been removed.

    As well as removing some methods and directives, a new simplified syntax structure has been added to the engine. As a result, it is best to follow the Angular v14 to v15 migration guide to ensure a smoother migration.

    Wrapping Up

    All in all, we have covered all the new features available with Angular V15. If your business relies upon the Angular framework, then it is time for you to upgrade to the most current version of the framework. There is no way you can afford to miss out on these new and exciting features that have been added to improve the performance and speed of it and other aspects of the application.

    With the expertise of its Angular Development team, Prishusoft can help you upgrade your current business application to use the most up-to-date version of the most popular frontend framework available.