librerías en angular

Angular Libraries, What are they and how to use them?

Angular is an application design framework and development platform that enables the creation of efficient and sophisticated web applications. In this context, the libraries in Angular play a fundamental role by providing reusable components that facilitate the construction of applications. Let’s explore what these libraries are and how to get the most out of them.

What are Angular libraries?

Libraries in Angular are sets of components, services and other resources that can be reused across different projects. Unlike a full application, a library cannot run on its own, it must be imported and used within an existing Angular application. Let’s look at some key points:

  • Reusable components:

Imagine a library as a toolbox containing pieces of code ready to use in your applications. These components can address common problems, such as user interface or data management.

  • Sharing functionality:

Libraries can be public and shared as npm packages. This means that other developers can use them in their projects. By not running independently, the libraries are integrated into existing applications.

  • Extend Angular’s capabilities:

Importing a library into your application allows you to extend Angular’s functionality. For example, you can add reactive forms or turn an application into a PWA (Progressive Web App) using specific libraries.

  • Publish custom libraries:

Developers can create their own libraries and publish them as npm packages. This is especially useful when you want to reuse code across multiple projects.

Benefits of creating custom libraries

Although creating and maintaining libraries may require additional effort, the benefits are significant:

  • Code reuse:

You can use the same functionality in different projects without duplicating code. This improves development efficiency and reduces potential bugs.

  • Simplified maintenance:

If you find bugs or need improvements, you only need to update the library in one place. This avoids having to fix the same problem in multiple applications.

  • Collaboration and contribution:

Sharing your library with other developers contributes to the Angular ecosystem. In addition, you can benefit from the libraries created by the community.


In conclusion, the libraries in Angular are fundamental tools that enhance the development of sophisticated and efficient web applications. They are sets of reusable components, services and resources that, when integrated into existing projects, can address common problems and extend the functionality of the framework.

The benefits of creating and using custom libraries include code reuse, simplified maintenance and the opportunity to collaborate with the developer community. This not only improves efficiency and reduces bugs, but also contributes to the enrichment of the Angular ecosystem, facilitating the development of innovative and optimised solutions.

Explore the world of Angular libraries and power your projects!
Jorge David Ortega – Software Developer at Itequia