Ways to Improve Ionic Angular App Performance

Ionic and Angular have great power over the apps developed for iOS and Android Operating Systems. How? Well, most smartphone users download applications on their phones for daily use, including entertainment apps, banking apps, and much more. Thus, these applications are built using web technologies such as Ionic and Angular framework. 

Did you know? 

Ionic and Angular has control over 10% of iOS and 20% of Android apps roughly. 

Building performant web applications is a demanding task if you want to keep a hold of happy customers. It requires regular updates and fixing of bugs for proper functioning. Therefore, there are a few methods that you can follow to improve the Ionic Angular app performance. 

Tips to Improve Ionic Angular App Performance 

Audit Bundle Size with Source-Map-Explorer 

The latest web applications that also include Angular apps are modified numerous times before releasing on a web browser. Additionally, source maps are used to rectify an application or study its bundle size.

Why source maps?

Well, using source maps is a great way to examine or recognize the gap between the code originally written and the one sent to the end-user. To foresee the app code’s distribution, it is advised to use the source-map-explorer tool. To use the same, follow the steps mentioned below:

• Install the source-map-explorer tool.
• Expand ‘angular.json’ in your project.
• Locate ‘Configurations’ and adjust the ‘namedChunks’ and ‘sourceMaps’ options to ‘True.’ 
• Generate a production build of the app.
• Lastly, run the source-map-explorer tool. 

Once you run the command, your app’s code distribution will be viewed. It’ll include the code generated by you and the libraries currently being used, such as the Ionic framework, Angular, Capacitor, and RxJS. 

Design Size Budgets 

Apart from running the source-map-explorer tool, you may also consider designing size budgets. Notably, once the application is in-between its production process, it becomes difficult to cut down the app size. Therefore, configuring budget size will make sure that the app remains between the size restriction provided by you. It is essential to mention that the recommended budgets are different for each application. Keeping a note of the right values is required. 

Use Native Angular Lazy Loading Strategy 

Ionic Angular applications grasp the lazy loading modules when navigated for the first time by the user. This strategy is used to decrease the original bundle size and improve app performance. All you need to do is use the ‘ng generate’ command for creating a lazily loaded module. 

Use ‘ng update’ for Keeping Angular Updated 

Updating dependencies include a high risk of something breaking, which may distract from introducing new features for your app. Luckily, the Angular team is great at working with the CLI’s update process, via which Angular packages are updated. Not only this, but code transformations are also applied as required for you. 

It is recommended to initially work on updating CLI and core,  and then update the remaining Angular packages. 

Hot Module Replacement (HMR)

The cherry on the cake is the Hot Module Replacement feature, which enables the user to make changes in the app without rebuilding it from scratch. Notably, other frameworks had access to the HMR feature, but now angular uses the same. 

Undoubtedly, HMR works exceptionally well with Angular, but there are many more things that can be improved; for instance, its interaction with Ionic. 

To run HMR with developing Ionic applications, run the following command:

Ionic serve -- --hmr

Conclusion

Making improvements to the Ionic Angular app performance can be a complicated process. However, using tools, including lazy loading, configuring size budget, stabilizing CLI improvements with HMR features, etc, are a great help. 

Do you want to know more about the Ionic Angular app development? Reach out to the best app development company and get professional guidance about the same.