Due to the growing popularity of mobile apps & web applications, companies are looking for a better option to build mobile & web apps with faster speed & fewer resources. In order to achieve that there are certain frameworks globally available like Angular, React, Meteor. To stay abreast with the growing need of the customers and businesses, the constant inflow of the niche technology, frameworks, and platforms need to update. In this blog, we are going to share the differences between the features, changes, and improvements related to Angular 6 vs Angular 7 vs Angular 8.
Characteristics between Angular 6 vs Angular 7 vs Angular 8
Features of Angular 6
Angular 6 was released on May 4th, 2018. The major highlights of Angular 6 include the Angular Command Line Interface (CLI), The Component Development KIT (CDK), Angular Material Package update and with new TypeScript version 2.7, it becomes much easier to code with conditional type declarations, default declarations, and strict class initialization.
To create a widget
or component that can be included in any existing web page was made possible
with Angular Elements.
The entire package of Angular Elements provided the ability to create an Angular component and then publish that component as a web component which can be used in any HTML page
Service workers were first introduced in Angular 5. It is the scripts which run in the web browser and manage to cache an application. Service workers come with some bug fixes, including some new functionalities as there was no straight way for deactivating the service worker and to overcome this, Angular 6 came up with a new script file safety-worker.js in production bundle.
One of the major changes introduced to Angular 6 is internationalization (i18n) feature with runtime rendering so that there is no requirement to build one application per locale.
Bazel optimizes your Angular compilation, it only rebuilds what is necessary to build as it does not make any sense to rebuild the entire application for every little change with this which will help us to archive fast and incremental builds.
ng add helps you install and download new packages in your angular apps.
Tree shaking is a build optimization step which tries to ensure any unused code does not get used in our final bundle which helps you to make your app smaller. It uses new injectable services where we can register a provider directly inside the @Injectable() decorator, using the new provided In attribute.
Some Major updates in Angular 6
- Typescript 2.7.x supports
- Improved decorator error messages
- Fix platform-detection example for Universal
- Added to supports of Native-Element
- Added Optional generic type for ElementRef
- Updates on NgModelChange
- Add type and hooks to directive def
- Enable size tracking of a minimal CLI render3 application
- Add canonical view query
- <ng-template> now becomes <template>
- Long-term support(LTE) added to Angular from v4
Features of Angular 7
In Angular 7, the command-line interface (CLI) prompts have been updated to v7.0.2, When the user executes common commands like ng add @angular/material or ng new it will automatically trigger user defined commands like ng add @angular/material help you discover built-in features like routing or SCSS support.
Angular 7 added a new compiler called the Angular Compatibility Compiler (ngcc). Just like the name suggests, the angular compiler offers an 8-phase rotating ahead-of-time compilation(AOT) and most of the angular applications noticed a massive reduction (95-99%) in bundle sizes.
Many developers include the reflect-metadata polyfill in the production, so they decided to fix this part by automatically removing it from your polyfills.ts file and to speed up the performance newly released applications will warn when the initial bundle is more than 2MB and will error at 5MB which user can modify it in angular.json file.
Angular 7 has added a new feature of life-cycle hook (ngDoBootstrap) and interface (DoBootstrap), It’s used for bootstrapping modules that need to bootstrap a component.
In Angular 7, If you try to trigger navigation outside of the Angular zone it logs a warning (only in development mode).
Some Major updates in Angular 7
- Angular 7 now supporting to TypeScript 3.1
- Added a new ability to recover from malformed URLs
- Downloadable console for starting and running Angular projects on your local machine
- compiler-cli: update tsickle to 0.29.x
- Export default Key Value Differs to private API
Features of Angular 8
Angular 8 has introduced with a bunch of workflow and performance improvements and a lot has changed in the framework under the hood in terms of tooling.
After comparing Angular 6 vs Angular 7 vs Angular 8 Finally, Angular 8 released with ivy rendering which Angular team was along with updated angular core framework, Angular Material, and the Command Line Interface or CLI.
Ivy is a major part of this release, and it took most of the effort from Angular 6 to release it. Ivy is a new rendering engine that will produce smaller bundle sizes But it’s not recommended to start using it in production not just yet. Know more about what is ivy?
Web workers are essential for improving the parallelizability and the speed of your application. Angular 8.0 added support to CLI which provides one bundle for every web worker & they do it by writing code off the main thread.
Lazy loading is based on the concepts of Angular Routing and Angular 8 added support for dynamic EcmaScript imports in router configuration as it helps bring down the size of large files by lazily loading the files that are required.
Angular 8 officially added support for firebase and now deploying an Angular app to Firebase is very easy, and it doesn’t take too much time using Angular CLI, Service Worker.
Your Angular 8 apps now will more performant thanks to differential loading and two bundles are created for a production build i,e bundle for new browser with ES2015+ and with an old browser with ES5 version. The ng build command with the –prod flag will take care of bundling everything out of the box.
Opt-In Usage Sharing
With the help of Angular 8, we can switch between IVY and the regular View engine build. It enables opt-in to sharing telemetry about your Angular CLI usage with the Angular and can collect data like commands used and the build speed if users allow them which will help developers improve in the future.
Angular CLI Builders
The CLI Builder API is stable and available to developers who want to customize the Angular CLI by adding or modifying commands.
Major features included in Angular 8
- AngularJS API Migration Improvements with $location service
- Updated Typescript to 3.4.x
- @angular/platform-webworker [email protected]/platform-webworker-dynamic both the packages are deprecated
- @angular/http removed from the list of packages
- ng-build, ng-test, and ng-run are equipped to be extended by 3rd-party libraries and tool.
- Angular router backward compatibility
- Dart-sass for Sass files
ContentChilddecorators now must have a new option called
In this article, we have discussed the differences between Angular 6 vs 7 vs 8. Being an AngularJS Development Company the main updates received for developers in Angular 6 were ng update, Angular Material + CDK components, CLI Workspaces, Animations Performance Improvements, ng add, and Angular elements wherein Angular 7 they updated component dev kit (CDK), Drag & drop. Virtual scrolling, application performance improvements, documentation & dependency updates and Angular 8 released with a major update in Ivy, web workers, lazy loading, improvement of ng-Upgrade, support for node v10, support for TypeScript 3.1, CLI Prompts & angular performance.
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