angular modules

Step-by-Step Guide to Understanding Angular Modules

21 Mar 2024

Have you ever found yourself tangled in a web of code, wondering if there was a magic wand to organize it all neatly? Well, if you’re stepping into the world of web development with Angular, you’re in luck! Let’s talk about something that acts quite a bit like that organizational magic wand: Angular modules. 

Now, you might be thinking, “Modules? Sounds complex.” But, stick with me, because understanding these building blocks is like finding the secret sauce to crafting scalable and manageable applications.

Why should this matter to you, especially if you’re part of a business startup? Imagine having a toolbox where every tool has its place, making it effortlessly easy to grab exactly what you need, when you need it. That’s what Angular modules do for your application’s code. They help you compartmentalize features, services, and components, paving the way for a project that’s not just easier to develop and maintain but also to scale.

In this blog, we will delve into the world of Angular modules, exploring what they are, why they are crucial, and how to use them effectively to organize and enhance your application development.  So, without waiting for another second we can begin together!

Understanding Angular Modules: What are they? 

Angular, a popular JavaScript framework, is widely used for building dynamic and responsive web applications. One of the key features that make Angular a powerful tool is its module system. 

Angular modules are a fundamental building block of any Angular application. They are used to encapsulate and organize different parts of your application into cohesive units. 

Each module groups related components, services, directives, and other pieces of functionality together, allowing you to maintain a clear structure and separation of concerns within your application.

Why use modules in Angular?

usage of angular modules

Have you thinked about why Angular is preferred for web development? If you don’t pay rapt attention to proper software architecture, parts of your app can become deeply entangled and disorganized, making it more difficult to reuse code or test any piece of code in isolation.

Modules enable you to:

  • Develop a particular piece of functionality independently from the others.
  • Manage teams more easily by enabling each development team to work on a separate feature.
  • Explicitly define the list of modules that the current one requires to function.
  • Deploy features gradually.
  • Build scalable applications
  • Write tests easily.

What are the key attributes of Angular modules?

key attributes of angular modules

1. Encapsulation: 

Modules serve as a protective barrier, preventing naming conflicts and establishing a clear boundary for components, services, and other Angular elements, ensuring a well-defined and organized structure.

2. Organization: 

Enhancing code organization, modules group similar features together, streamlining the development process. With each module focusing on a specific aspect of the application, code becomes more accessible and comprehensible.

3. Reusability:

Modules play a crucial role in promoting code reusability and maintainability. Code encapsulated within modules can be reused in other projects or different sections of the same application, fostering efficient development practices.

4. Dependency Management:

Clearly defining the required parts, instructions, and services, modules facilitate effective dependency management. This ensures transparent relationships between various components within the application, contributing to a modular and scalable architecture.

5. Lazy Loading:

 Modules can be loaded on-demand with Angular’s support for lazy loading. This feature proves particularly beneficial for deferring the loading of non-essential components, optimizing initial loading times for improved overall performance.

Types of modules in Angular 

types of modules in angular

In Angular, modules play a crucial role in organizing and structuring an application. Let’s explore the different types of modules available in Angular and their specific functions.

Root Module:

 The root module is the main module in an Angular application. It is generated by the Angular CLI as AppModule and bootstrapped when the application starts.

Every other Angular module depends either directly or indirectly on the root module. Only one root module can exist in an Angular application.

Core module: 

The core module usually contains components that are used once in an Angular application, such as a navigation bar, loader, footer, etc. This module should be loaded globally in AppModule.

Shared module:

 A shared module is made up of directives, pipes, and components that can be reused in feature modules.

For example, let’s say you’ve written a custom grid or filter that is reused in multiple modules of your Angular application. You could identify these as shared modules.

Feature modules:

Feature modules house the main features of your Angular application.

If you’re building an e-commerce application, for example, you might have specific sets of functionalities, such as orders, products, carts, customers, etc. Breaking these functionalities into feature modules helps you split the application into dedicated areas. This enables multiple developers or teams of developers to work on independent features without breaking other parts of the application.

Looking for the perfect tech partner for your angular project? Check out the top players here.

Creating an Angular Module: Step-by-Step Guide

If you’re looking to create an Angular module, here’s a simple step-by-step process to guide you through:

Let’s walk through the process of creating an Angular module.

  1. Create a New Module: Use the Angular CLI command ng generate module module-name to generate a new module. This command will create a new directory for your module and generate the necessary files.
  1. Configure the Module: In the generated module file (e.g., module-name.module.ts), you can configure the module by importing and declaring components, services, and other elements that belong to this module.
  1. Export the Module: Export the module class using the @NgModule decorator. This makes the module available for importing and use in other parts of your application.
  1. Use the Module: Import the module into the components or other modules where you want to use its functionality. You can then use the components, services, and other elements defined in the module.

Angular modules Vs components 

Angular modules vs components
AspectAngular ComponentsAngular Modules
DefinitionRepresent specific UI elements, encapsulating logic and data for a particular view.Serve as containers for a cohesive set of related components, directives, and pipes, providing modularity.
ScopeFocus on individual parts of the user interface, handling specific functionality.Focus on organizing and structuring the application by grouping related features and components.
ReusabilityCan be reused across different parts of the application to maintain consistency.Promote reusability by encapsulating functionalities and making them available for use in various contexts.
DependenciesCan depend on services, other components, and external libraries to fulfill their tasks.Can import components, directives, and pipes from other modules to leverage their functionalities.
PurposeEnable the creation of modular, reusable, and maintainable UI elements.Facilitate the organization and management of the application’s functionalities and features.
DeclarationRegistered within a module or directly in the metadata of the @Component decorator.Declared within a module using the @NgModule decorator to define its properties and functionalities.
Relationship with ModulesTypically reside within Angular modules to maintain a structured architecture.Act as building blocks within Angular modules, contributing to the overall modularity of the application.

Why Nintriva?

Nintriva’s homepage

Nintriva stands as a beacon for businesses seeking to harness the power of Angular and other cutting-edge technologies. 

Their expertise in Angular development spans a spectrum of services, from custom development to migration and enhancement of existing applications. Nintriva offers a range of services catering to every stage of the software development lifecycle, ensuring that your digital solution is as robust as it is scalable.

Nintriva’s Angular Development Services

Nintriva provide a suite of Angular development services, tailor-made to suit the needs of modern web applications. Their services include but are not limited to:

Custom Angular Development: For unique business needs, custom development becomes a necessity. Their team excels in crafting bespoke Angular solutions that align precisely with your requirements.

Migration to the Latest Angular Version; Stay ahead of the curve with a seamless migration to the latest version of Angular. They handle the process with precision, ensuring minimal downtime and maximum performance.

AngularJS to Angular Migration: Nintriva offers risk-free angular migration services where you can migrate your existing app to a newer Angular version.

Conversion of HTML to Angular: Transform the look and feel of your web applications by converting HTML elements into dynamic Angular components. 

Angular Web Development: Their Angular web development team crafts responsive and interactive user interfaces that delight your audience. They understand the nuances of web development and tailor services to meet your specific goals.

Angular Mobile App Development: In an era dominated by mobile, having an Angular mobile app is a strategic advantage. Their mobile app development services ensure that you tap into the app market with a compelling solution.

 Let’s check the major projects they are working on Angular.

  • BIZ Boon: BizBoon connects Indian organizations and individuals entering or established in the US and Canada with local firms and institutions. 
  • Column Technologies: Addressing Human Resource requests and inquiries are critical to the overall morale and productivity of an organization, and they understand they must be addressed in a timely manner.
  • eDoctorBook: Its an online platform enabling seamless and effortless interaction between patients and doctors.
a guide for Angular modules 


Angular modules are an essential tool for building structured, maintainable, and scalable web applications. By understanding their importance and following best practices, you can harness the full power of Angular’s modular architecture to create robust and efficient applications. 

For those seeking to harness the full potential of Angular, partnering with Nintriva is an unequivocal path toward success. With a focus on innovation and precision, Nintriva’s Angular development services are tailored to ensure your application not only meets but exceeds industry standards.

Enrich your development process by choosing Nintriva as your technology partner. Our commitment to your success is unwavering, and our portfolio speaks volumes about the advancements we’ve driven for our clients. 

Feel free, let’s connect to take your vision to the next level!

Frequently Asked Questions

What is the main purpose of an Angular module?

The main purpose of an Angular module is to organize the application into logical blocks of functionality. Each block is focused on a feature or part of the application, such as user interface components, services, or directives. Modules can be imported into other modules to use their functionality.

Can we have multiple root modules in an Angular application?

No, an Angular application can have only a single root module, commonly known as the AppModule. This module is responsible for bootstrapping the application and initializing the main component.

Why are Angular modules important?

Angular modules are important because they provide a way to create a modular, highly scalable web application. They offer tools for managing the dependencies of application code and allow for lazy loading of features to optimize performance. Additionally, modules help in organizing and structuring the application, which is essential for collaboration among developers.

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