One of the popular frameworks of JavaScript is Angular 7. It helps to create reactive Single Page Applications (SPAs). Angular 7 was released on 18th October 2018. It is used to build web and mobile applications. AngularJS was the first version of Angular. It contains various components which form a tree structure with parent and child components. It is a Typescript based and open-source web applications.
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Features of Angular 7
There are some features of Angular 7 which made it a powerful and solid framework.
i) Application performance:
In comparison to the earlier version of angular, Angular 7 is fast. With the introduction of some features, it makes the app run faster and work better. The main aim is not to make the framework small but it makes the applications small also. The updated version 7 automatically removes the reflect-metadata polyfill.
ii) CLI prompts:
CLI (command-line interface) prompts has been updated to version 7.0.2, in angular 7. It will prompt users when the users execute a general command such as ng-add, ng-new or @angular/material. It helps to find built-in features such as SCSS support or routing. It also takes advantages of Bundle Budgets in CLI while creating new projects.
iii) Bundle Budget:
The developers can fix a budget limit of their bundle size. The bundled budget has a lower limit of 2MB and the higher limit is 5MB in the default setting. A new application will warn if the initial bundle is more than 2 MB and at 5MB there will be an error. These settings can be changed by the developers as per their requirements. The performance of an application is improved when there is a reduction in the size of the bundle.
iv) Drag and Drop:
The users can re-order the list by dragging and dropping items in the list. The user can modify the drag area as per requirements by using the CDK (Component Dev Kit) drag handle. If required multiple handles can be applied on a single item. The transfer of elements between the lists is also allowed. As per the user’s command, the item may shift along the X-axis or Y-axis because the movement of drag and drop is restricted along an axis.
v) Angular Compiler:
8-phase rotating ahead-of-time is offered in the new angular compiler. The Angular Compatibility compiler converts the node_modules compiled with ngc into node_modules which seems to have been compiled with ngtsc. This conversion will permit “legacy” packages to be used by the Ivy rendering engine.
vi) Virtual Scrolling:
The feature of virtual scrolling is present in angular 7. It allows the users to combine lists of elements in small packages even if it is too long. At the user end, data will be given into packets as per the scroll movements. This feature is beneficial for a mobile app where scrolling can influence performance. It is helpful for web applications also because even in web applications if a long list of data is scrolled, the performance gets affected.
vii) Angular Do-Bootstrap:
Angular 7 is used to bootstrap those modules which need to bootstrap components. The latest version includes new life-cycle hoop (ngDoBootstrap) and interface (DOBootstrap).
viii) Better Error Handling:
In angular 7, @Output has an improved error handling features. It improves a better error handling in an application of angular.
ix) Angular Elements:
Content projection using web standard for custom elements is supported by Angular 7. This feature was introduced in Angular 6. Angular 7 comes with this new update feature because it is a part of the angular framework.
x) Native Script:
Earlier the developers have to create separate projects for the applications of web and mobile version. But with the introduction of Angular 7, users can develop mobile and web applications through a single project. For the mobile and web applications, in a single project, the codes are maintained in such a way that in one place the shareable parts are kept and in another place, the non-shareable parts can be created. This functionality is provided by native script schematics collection.
xi) Documentation Updates:
For the benefit and convenience of the developers, the angular team has been constantly working on improving the references and guidelines. The update of the documentation for angular is an important step for Angular CLI. It is an improvement of the Angular 7 features.
xii) Dependency Updates:
The dependencies have also been upgraded on the third-party projects which include the support of TypeScript 3.1, Node 10 and RxJS 6.3. While working with angular 7, it is compulsory to use TypeScript’s latest version.
Typecript 3.1 support
It supports the Node v10.
Angular 7 is gaining popularity in the technology industry. Its latest updates have made the developer’s life quite easy and simple. It has lots of unique features which makes it easy and quick to develop an application.
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