Angular Tutorials For Beginners
Angular Tutorials For Beginners
Angular, developed and maintained by Google, is a powerful and popular JavaScript framework used for building dynamic web applications. It provides developers with a structured approach to developing Single Page Applications (SPAs) and simplifies the entire development process. For beginners, mastering Angular might seem challenging at first, but with the right tutorials and resources, you can quickly get up to speed and unlock the potential of this versatile framework.
In this article, We will give a series of step-by-step Angular tutorials for beginners that have been specifically chosen that will help in your understanding of the fundamental ideas and the gradual improvement of your skills.
History & Versions of Angular
Angular has undergone several major updates, each bringing significant improvements and new features.
AngularJS (Angular 1. x)
Angular's journey began with AngularJS, also known as Angular 1. x, which was released in 2010. It revolutionized web development by introducing a Model-View-Controller (MVC) architecture for building dynamic and interactive user interfaces. AngularJS utilized HTML as a declarative language and extended it with directives, enabling developers to build custom elements and behaviors.
Angular 2
In 2016, Angular 2 marked a significant departure from AngularJS, rewriting the entire framework to address its limitations. Angular 2 was not backward compatible with AngularJS, which led to some initial challenges for developers. However, it introduced a more efficient and performant framework built on modern principles.
Angular 4, 5, and 6
To streamline the versioning process and avoid confusion, Angular moved to a semantic versioning system. In March 2017, Angular 4 was released, followed by Angular 5 later that year and Angular 6 in 2018. These updates focused on improving the framework's speed, reducing package sizes, and introducing new features.
Angular 7 and 8
Angular 7, released in October 2018, and Angular 8, released in May 2019, continued the trend of enhancing performance, reducing the application size, and providing a better developer experience.
Angular 9 and 10
Angular 9, launched in February 2020, introduced significant improvements under the hood while maintaining backward compatibility. It also brought updates to the Angular Material UI component library.
Angular 11, 12, and Beyond
Angular 11, released in November 2020, continued the focus on improving performance and developer experience. Subsequent versions, including Angular 12 and beyond, have continued to build upon these foundations, introducing new features, bug fixes, and optimizations.
What is Angular?
For creating client-side web applications, Angular is an open-source framework built on Typescript. Let’s first quickly understand JavaScript since it is a superset of Typescript. JavaScript is a client-side scripting language that may be used to create or program how web pages should respond to specific events. JavaScript is typically used for slide shows, interface interactions, and other interactive elements. The rapid evolution of JavaScript has led to its adoption in game creation, server-side programming (like Node.js), and other areas. In both India and the US, demand for Angular is higher than that of all other Web Developer Training Programmes.
Dynamic content is a key component of web development, and JavaScript deals with it. Dynamic content is content that changes frequently and is tailored to individual users. By examining the device accessing the website, JavaScript, for instance, can decide whether or not to render the website’s mobile version.
This inspired web designers to start building their own unique JavaScript libraries to cut down on code and simplify the implementation of complex functionality. The traversal and manipulation of HTML documents, event management, animation, and Ajax are all made much easier with the help of the quick, compact, and feature-rich JavaScript library known as jQuery. Because it was simple to use and incredibly strong, jQuery quickly grew to become the most used one.
By industry-standard practices for web development, Angular is a client-side JavaScript framework that was created to assist developers in creating SPAs (Single Page Applications). The risk of creating “spaghetti code” is significantly decreased by offering a structured environment for developing SPAs. What is SPA, then, must be on your mind.
Single-Page Applications (SPAs)
Single-Page Applications (SPAs) have emerged as a game-changer in modern web development, transforming the way users interact with websites and web applications. Unlike traditional multi-page websites, SPAs load, and update content dynamically on a single web page, providing a fluid and seamless user experience.
Understanding Single-Page Applications (SPAs)
A Single-Page Application is a web application or website that fits entirely on a single web page. When users interact with the application, it dynamically loads and updates content without the need for full-page reloads. SPAs rely heavily on JavaScript frameworks like Angular, React, or Vue.js to handle the dynamic rendering and provide a smooth user experience.
Key Features of Single-Page Applications
Asynchronous Data Loading: SPAs use AJAX (Asynchronous JavaScript and XML) to fetch data from the server without reloading the entire page. This enables real-time updates and a more responsive interface.
Dynamic Content Rendering: SPAs leverage client-side rendering to dynamically update content based on user interactions, reducing server loads and enhancing speed.
Smooth Navigation: SPAs use client-side routing to manage navigation without requiring server requests. This results in faster transitions between different sections of the application.Improved User Experience: By eliminating page reloads, SPAs create a seamless and interactive user experience similar to that of a desktop application.
Data Binding in Angular
Data Binding is a foundational concept in Angular that enables developers to establish seamless communication between the application’s data model and its user interface (UI). By implementing data binding, developers can ensure that changes in data are automatically reflected in the UI and vice versa, simplifying the development process and creating more interactive and responsive web applications. In this article, we will explore the different types of data binding in Angular, their application, and how they contribute to building dynamic user interfaces.
Understanding Data Binding in Angular
Data binding is the mechanism that establishes a connection between the application's data model (usually the component properties) and the UI elements, such as HTML elements or Angular templates. When the data model changes, the UI is automatically updated, providing a real-time view of the data to the user. Angular supports various types of data binding, each serving different use cases.
Types of Data Binding in Angular
Interpolation (One-Way Binding)
Interpolation, denoted by double curly braces {{ }}, allows developers to bind data from the component to the template. For example, <h1>{{ title }}</h1>. Any changes to the title property in the component will be reflected in the template automatically.
Property Binding (One-Way Binding)
Property binding uses square brackets [ ] to bind component properties to HTML element properties. For example, <img [src]=”imageUrl”>. When the imageUrl property in the component changes, the src attribute of the img element updates accordingly.
Event Binding (One-Way Binding)
Event binding, denoted by parentheses (), allows developers to bind UI events (e.g., clicks, keypress) to component methods. For example, <button (click)=”onButtonClick()”>Click Me</button>. When the button is clicked, the onButtonClick() method in the component is executed.
Two-Way Binding
Two-Way Binding combines property binding and event binding into a single expression using the [( )] syntax. It allows data to flow in both directions between the component and the template. For example, <input [(ngModel)]=”username”>. Any changes to the username property in the component or the input field will automatically update each other.
Angular Routing
Angular Routing is a crucial feature that empowers developers to create seamless navigation within Single-Page Applications (SPAs). As the user interacts with an Angular application, routing allows for the dynamic loading and display of different components without the need to refresh the entire page. In this article, we will explore the fundamentals of Angular Routing, how to set it up, its key components, and how it facilitates the creation of responsive and interactive web applications.
Understanding Angular Routing
Angular Routing is a mechanism that enables navigation between different views or components within a SPA. It allows developers to define routes for various sections of the application, associating each route with a specific component. When a user clicks on a link or interacts with a UI element that triggers a route change, Angular seamlessly loads and displays the corresponding component without reloading the entire page.
Setting Up Angular Routing
To implement routing in an Angular application, follow these steps:
Install Angular Router: Angular Router comes pre-installed with the Angular CLI. If you are starting a new project, you can use the following command to generate a new application with routing enabled: ng new my-app –routing.
Define Routes: In the app-routing.module.ts file, define the routes using the RouterModule.forRoot() method. Each route is an object with a path (URL segment) and component (associated component) property. Add Router Outlet: In the root component’s template (usually app.component.html), add the <router-outlet></router-outlet> tag. This placeholder will be replaced with the content of the active route’s component.
Why Angular?
Many software developers utilize Angular, one of the most well-liked JavaScript-based web development frameworks, to build online apps. Angular is used by more than 44% of developers and designers who create websites to build user interfaces, according to a 2017 Stack-Overflow developers study. However, why is Angular so well-liked? Here are a few of the explanations for why this is the scenario:
- The TypweScript programming language, which is used to create Angular apps, reduces coding errors and guarantees great performance and security.
- Two-way binding is offered, allowing for smooth synchronization between the view and the modes. In case the data is changed, it instantly updates these components.
- In comparison to other web development frameworks, Angular requires a smaller time investment for projects. The Angular CLI tool enables developers to build prototype projects, carry out testing, and add features to them.
- In order for the browser to read the templates you've built, the Angular view engine converts them into JavaScript and HTML files.
- Reduce development time since Angular employs HTML, which is simpler than JavaScript, to define an application's user interface.
Prerequisites for Learning Angular
There are a few prerequisites you need to meet to learn Angular, which is a widely used web development framework. You may ensure that you go forward appropriately and study the well-known web framework most effectively by making sure you have met all the prerequisites. The following are the requirements for learning Angular:
Proficiency in HTML, CSS, and JavaScript
Before diving into Angular, it's crucial to have a solid understanding of HTML, CSS, and JavaScript—the fundamental building blocks of web development. Familiarity with HTML will help you create the structure and content of your web pages, while CSS will enable you to style and design your application. JavaScript forms the backbone of Angular applications, so a good grasp of the language is essential for writing interactive and dynamic code.
Knowledge of TypeScript
TypeScript is a superset of JavaScript used extensively in Angular development. It adds static typing, interfaces, classes, and other features to JavaScript, providing strong typing and improved tooling support. Familiarity with TypeScript will enhance your ability to write structured and maintainable code while leveraging the full potential of Angular's features.
Command Line and Node.js
As you work with Angular, you'll frequently use the Command Line Interface (CLI) to scaffold projects, run development servers, and perform various tasks. Prior knowledge of the command line and basic commands will streamline your development workflow. Additionally, understanding Node.js and npm (Node Package Manager) is essential, as they are integral to Angular development and package management.
Angular Certification
Your next goal would be to land well-paying employment once you have completed all of your fundamental Angular courses of study. Your technical knowledge will not be sufficient for it on its own. Therefore, you must have a valid certification that demonstrates your abilities and accomplishments.
The CV you provide when applying for the position of Angular developer will be carefully examined by recruiters. They’ll try to determine whether you possess the qualifications they’re seeking or not. Additionally, even if you are a qualified Angular developer, how will your resume demonstrate this?
What Position Does Angular Hold in the Future?
What Does Angular’s Future Hold?
This article believes that between 2016 and 2026, the employment prognosis for Angular developers predicts growth of about 30%, which is higher than the market’s demand for developers of general-purpose software.
By the way, Angular 12 was the most recent version to be released. Throughout its existence, Angular has experienced many stages of acceptance. It has gone from being the darling of web developers to being reviled, just to find its way back into favor, but not to the same degree as its former glory. Despite this, Angular continues to be quite popular and consistently ranks in the top five lists of the best frameworks.
The future of Angular developers is bright as a result of this revival. There is no doubt that this age-old structure still has a lot to offer, which results in a persistent demand from a variety of businesses.
Conclusion
Angular is undoubtedly one of the most challenging JS frameworks to grasp. However, the building of strong and contemporary web apps is made possible by its extensive feature set. Additionally, given that Google, a global leader in technology, is supporting this framework, you may anticipate it getting more and more exceptional features in the future.
It’s crucial to have at least some experience with HTML, CSS, and Javascript before beginning to understand Angular. Additional requirements for learning Angular include having a working understanding of Node.js and npm. You can use a source-code editor to begin writing Angular code, but working using an IDE may end up being more advantageous for you in the long term.
Follow one or more of the tutorials that are readily available online to become familiar with the Angular concepts. To ensure that learning is effective and seamless, be constant and determined. Once you have mastered the principles of Angular and are prepared to create some code on your own, it is also advised to take on a few projects.
By enrolling in a certification program, you can increase your chances of being hired by a respectable company for the position of Angular developer. An Angular certification will attest to your abilities and persuade hiring managers that you are prepared to assume the obligations of an Angular developer.Â
Finally, I hope you now can use all the information and tools you need to learn about and master Angular.