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  1. DZone
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  4. Angular Best Practices For Developing Efficient and Reliable Web Applications

Angular Best Practices For Developing Efficient and Reliable Web Applications

Following Angular best practices is essential for developing efficient and reliable web applications that deliver exceptional user experiences.

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Hardik Thakker user avatar
Hardik Thakker
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Jun. 27, 23 · Opinion
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The Google-created Angular framework that uses JavaScript is quite popular in developing web applications. The AngularJS framework has been completely rewritten, and Angular is intended specifically for creating dynamic programming structures. Angular allows developers to create clean, maintainable, and high-performing applications with its robust features and comprehensive ecosystem.

Modules, components, metadata, templates, data binding, services, directives, and dependency injection are the fundamental building elements of Angular. It's essential to keep up with the latest Angular development best practices as the technological landscape changes.  In the following article, we will look at the top Angular best practices for 2023 to help you create squeaky-clean and fast web applications.

Angular Best Practices That You Need To Follow

Angular is the most powerful framework for building robust, feature-rich web applications for your business requirements. Let's now explore some of the Angular best practices you should keep to in 2023 for developing robust web applications.

1. Use Angular CLI

An indispensable tool for Angular development is the Angular CLI (Command Line Interface). It offers an efficient method for developing, testing and deploying Angular apps. Using the Angular CLI increases productivity, automates repetitive processes, and assures respect for the advised project structure. Additionally, it enables quick updates to the most recent Angular version and gives developers access to the newest features and bug fixes.

2. Follow Angular Style Guide

For a consistent codebase, adherence to the official Angular Style Guide is essential. The style guide offers standards and best practices for producing orderly, understandable, and enduring code. It addresses topics including code formatting, component nomenclature, component architecture, and file structure. You may make sure that your code is clear to other developers and less likely to make mistakes by adhering to the style guide.

3. Use Angular Modules

A key component of Angular applications is the module (NgModule), or Angular modules. They give a means to group and encapsulate the services, entities, and other parts of the application. Coding that is scalable and maintained benefits from adhering to the modularity principle. Keep modules focused on a single function, and utilize lazy loading to boost efficiency by only loading modules when necessary.

4. Optimize Change Detection

Although Angular's change detection method is effective, improper use can have a negative consequence on application performance. Use the OnPush change detection approach wherever possible to maximize change detection. This approach only initiates change detection when a component's input properties change or an event is released. Additionally, stay away from complex or frequently occurring actions in templates and handle lists or ngFor loops effectively by using the trackBy function.

5. Use Angular Universal for Server-Side Rendering (SSR)

Server-side rendering (SSR) improves the performance of applications and offers greater SEO possibilities. For Angular applications, Angular Universal enables server-side rendering. It speeds up the time to first paint and enhances user experience by pre-rendering the application on the server and giving the initial HTML information to the client. SSR implementation is especially advantageous for performance-sensitive and content-intensive applications.

6. Optimize Bundle Size

For applications to run more efficiently, especially for users on slower connections or with restricted bandwidth, the bundle size must be reduced. Utilize the optimization methods that Angular CLI has built in, such as tree shaking and code minification. Think about using lazy loading modules to load code sections as needed. Use tools like Webpack Bundle Analyzer to minimize the bundle size by identifying and removing unused dependencies.

7. Use Reactive Forms

Template-driven forms and Reactive forms are the two methods offered by Angular for managing forms. Reactive forms are suggested for usage in 2023 because of their adaptability, simplicity in testing, and enhanced performance. Form validation, dynamic form elements, and handling complicated form scenarios may all be controlled more effectively with reactive forms thanks to reactive programming principles.

8. Optimize Performance With Angular Ivy

The new rendering engine, Angular Ivy, introduced in Angular version 9, provides a considerable performance boost over the old View Engine. By utilizing Ivy, you can experience smaller bundle sizes, less memory usage, quicker compilation times, and increased debugging capabilities. Make sure that your Angular projects have been converted to Ivy to benefit from these performance advantages.

9. Use Angular Material for UI Components

A broad selection of pre-built UI components is available through the Angular Material UI component library, which adheres to the Material Design principles. Utilizing Angular Material speeds up development and guarantees a unified, aesthetically pleasing user experience. Additionally, Angular Material components are easily accessible, responsive, and well-optimized, making them perfect for building effective applications.

10. Implement Unit Testing and E2E Testing

Writing thorough unit tests and end-to-end (E2E) tests is essential for making sure that your Angular apps are stable and reliable. Use test writing and execution tools like Karma and Protractor, as well as testing frameworks like Jasmine. As part of your CI/CD pipeline, strive for high test coverage and automate the testing process. This procedure ensures code quality, enhances maintainability, and aids in the early detection of defects.

Conclusion

As Angular develops, Angular best practices must be followed to create squeaky-clean and fast web applications. You can build solid Angular applications that provide a top-notch user experience by utilizing Angular CLI, following the Angular Style Guide, optimizing change detection, leveraging Angular Universal, reducing bundle size, using Reactive Forms, implementing Angular Ivy, using Angular Material, and conducting testing. To make sure your apps are effective, scalable, and future-proof, keep up with the newest Angular developments and constantly enhance your development techniques.

Dependency injection JavaScript Style guide UI AngularJS applications

Opinions expressed by DZone contributors are their own.

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