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Is it Overwhelming to Upgrade Angular? Update or not to update Angular often is not a question. You have to close security gaps, performance issues, or new browser or web standards compatibility problems. New improved versions make users more productive and happy. Angular has a predictable release schedule, so we can plan our upgrade activities in advance. The core Angular developers communicate clearly about deprecations and removals, usually with several notices before actual removal. Issues arise when a large-scale migration is required after long periods without incremental updates like AngularJS to Angular migration. Upgrading from a very outdated version, may require deep refactoring, and testing. The longer there are no updates, the more complex upgrading becomes. That’s why we recommend ongoing support to surprisingly cut costs compared with overhauls. Angular recommends updating major versions one at a time. For instance, if your application is on Angular version 4, upgrade to version 5, then to version 6, and so on. Skipping major versions can lead to missed deprecations, and breaking changes. Belitsoft offers Angular development services for performance optimization, feature enhancements, and security updates. Contact us for more information on Angular capabilities. Pre-upgrade checklist Verify Angular Version Consistency To ensure the stability and compatibility of your Angular application, it is important to have consistent versions across all @angular packages (like @angular/core, @angular/common, @angular/compiler, etc.) in your package.json. This prevents compatibility issues between the core framework and its related packages. Confirm CI/CD Pipeline Integrity Make sure your Continuous Integration and Continuous Deployment (CI/CD) systems are functioning properly and all tests are passing. This helps identify any issues in your codebase and confirms its stability. Perform a Preliminary Smoke Test Run a basic smoke test to verify core functionalities of your application are working as expected, with no errors or warnings in the console. This step verifies the app's stability before applying updates. Resolve Existing Issues Fix any outstanding bugs or quality concerns in your code. Upgrading on a clean, issue-free codebase minimizes complications during the update process. Adhere to the Update Guide Carefully follow the instructions provided in the Angular Update Guide, proceeding in a sequential and systematic manner through each recommended step. Prepare for Potential Rollback Be prepared for potential issues during the update process by having a plan in place and necessary backups to revert to the previous state if needed. It secures application stability in case of a failed update. Steps to follow Before Updating Make necessary code updates and preparations before attempting to update your Angular application.  Namespace Changes Angular often provides detailed notes on changes to services, modules, or other entities that might have new namespaces. Visual Studio Code (VS Code) offers powerful search capabilities that can simplify the process of updating namespaces across your project. Once you've identified all instances of the outdated namespaces, use the replace feature in VS Code to update them to the new namespaces.  Rename and Replace Updates It is necessary to address "Rename and Replace" updates when updating your Angular application for compatibility with newer framework versions. These updates may involve replacing deprecated types, methods, or properties with their new counterparts. For example, one update you might need to make is replacing OpaqueTokens with InjectionTokens, which was required in a transition from one version of Angular to another. Functional Changes Handling functional changes due to deprecated features or significant updates in Angular requires a strategic approach. The extent of the required updates depends on how much the application relies on these soon-to-be-removed features. It could range from minor adjustments to significant codebase overhauls. After updating Angular, you may encounter deprecations, especially with libraries like RxJS, commonly used in Angular applications for reactive programming.   Angular signals deprecated features, usually one major version ahead of their removal. Follow Angular's blog and other community channels to stay updated on deprecations and new features. The Angular Update Guide provides insights into planned changes for future versions, allowing for early preparation and resource planning. Updating Node  Updating Node.js and npm is important when updating Angular because they handle dependency management and running Angular CLI. To ensure compatibility, check the versions and fix any peer dependency errors that may occur. This is common when the installed versions don't match Angular's specified dependencies. It is recommended to use Long Term Support (LTS) versions of Node.js for stability and support. To prevent any issues, clear your project's node_modules and the CI server cache after updating. For more detailed guidance, refer to Angular's documentation and the official Node.js website (https://nodejs.org). Incompatible peer dependencies When upgrading Angular, dealing with incompatible peer dependency errors is a common challenge. It requires careful navigation. These errors occur because Angular and its associated tools and libraries have specific version requirements for compatibility and proper functioning. However, sometimes the installed version does not meet these requirements. For a complete overview of the version compatibility between Angular, Node.js, TypeScript, and RxJS, refer to the official Angular Update Guide. Global Npm packages  For optimal project compatibility, it's recommended to install tools like TypeScript, Webpack, Gulp, or Grunt locally within each project. This practice ensures the use of precise tool versions as defined in the project's package.json, preventing conflicts across different projects. With npm version 5.2.0 or newer, the npx command allows the execution of local CLI tools and scripts with no global installation. This approach combines the convenience of global commands with the reliability of project-specific versions, minimizing version conflict issues. Their stability and infrequent updates justify global installation, reducing the likelihood of version conflicts. However, a downside of global installations is the need for regular updates. Using tools that prompt for updates, such as a CLI tool for cloud deployments, users can easily stay up-to-date with the latest versions. Managing Node.js and npm installations, especially on Windows, can sometimes lead to complications. Therefore, careful package management is important in order to avoid any issues.  Update Angular Use Angular Update Guide Angular simplifies upgrades with a wealth of tools and resources. A key resource is the Angular Update Guide available at update.angular.io.  This guide offers personalized instructions for upgrading from any version to the latest one. It categorizes applications into three complexity levels: Basic, Medium, and Advanced. This way, it can give tailored advice based on your application's complexity and the Angular features and APIs it uses. Angular Update Guide Basic: For applications that use Angular in straightforward ways, with little customization or deep API usage. Medium: This is where most applications fall. If your application uses a standard set of Angular features and some third-party libraries, select this option. Advanced: Recommended for applications that leverage deep Angular functionalities, custom behaviors, or deprecated features.  The Angular Evergreen extension from the Visual Studio Marketplace makes it easy to keep your Angular applications up to date within the Visual Studio Code (VS Code) environment. Angular Evergreen It detects the version of Angular used in your project and compares it with the latest stable and next (pre-release) versions. This allows developers to stay informed about updates and decide if they need to upgrade. It also highlights upcoming "next" releases for early testing and compatibility checks. These next versions are crucial for identifying potential compatibility issues before a full release. With this extension, upgrading Angular and npm dependencies is simplified with streamlined commands in the VS Code. This simplicity removes some of the complexity and manual effort typically associated with updating project dependencies. Automated update of your Angular app Updating software, including frameworks like Angular, indeed involves risks such as breaking changes, compatibility issues, or unexpected behavior in your application. However, by employing best practices regarding Pre-Upgrade Steps, you can mitigate these risks significantly.  The Angular CLI (ng update command) automates the upgrade process, handling dependency updates and code adjustments. A prime example of Angular's versatility in addressing complex challenges is our development of a custom Electronic Healthcare Record (EHR) SaaS. This project showcases how Angular's robust framework can create secure, scalable healthcare applications that improve operational efficiency and data management. Manual update Understanding and being prepared to manually update Angular ensures that you can keep your application current, even when automatic tools are not an option.  Manually updating Angular can be necessary under several circumstances, such as when the Angular CLI automatic update feature is not available, has been ejected from the project, or encounters a bug that prevents its use.  Validating Updates with Automated Testing Incorporating automation testing ensures your application meets performance and security standards post-update. This approach complements your update strategy, helping to keep your Angular application efficient and secure.   Post Update Checklist Build and Smoke Test After each update phase, perform a full build of your Angular application and conduct a series of smoke tests to verify that the most important functions of your application work as expected.  Commit Changes Regularly commit your changes to version control after completing specific updates or modifications. This practice not only helps in tracking the progress but also facilitates easier rollback or adjustment if new updates introduce issues. Maintain CI Pipeline Integrity With each commit, verify your Continuous Integration (CI) pipeline runs successfully and remains "green."  Adhere to Release-Cycle Procedures For updates that bring functional changes, it’s essential to follow your organization's release-cycle procedures. This often means engaging in an extensive round of testing, including manual evaluations by a Quality Assurance (QA) team, to validate that the changes meet the quality standards and do not adversely affect other parts of the application. Incremental Implementation and Deployment When deploying updates, especially those involving functional alterations, adopt an incremental approach. Implement and release changes one at a time, evaluating the application’s performance and functionality in the production environment after each deployment. This method allows for more controlled updates and easier troubleshooting should issues arise. Collect and Analyze Performance Data After deploying your updated Angular application, gather and assess performance metrics compared to pre-update benchmarks. This analysis is crucial for understanding the impact of the update on application performance and identifying areas for improvement. Testing performance Before and after updates, evaluate performance to leverage any platform-level enhancements in the new version and confirm the positive impact of the update. Consider assessing performance metrics compared to pre-update benchmarks to identify areas for improvement in comprehensive performance testing.  Addressing security vulnerabilities Keep up-to-date with potential vulnerabilities by following security blogs, advisories, and using tools integrated into version control platforms like GitHub. These tools can alert you to dependencies with known issues. Assess and strengthen your application with professional security testing services.  Updating your web server Regularly update and secure your web server, particularly for live production systems exposed to the internet.  When using Docker to host your application, specify exact versions of base images to avoid unintended versions. For Node.js-based servers, for example, it's recommended to avoid odd-numbered releases, which are typically considered unstable. Use minimal setup for your web server, such as minimal-node-webserver, to reduce the attack surface. These setups follow layers of security practices designed to protect your web application. Ensure you follow security bulletins for IIS, Apache, or Tomcat if your application is hosted on them.  Coordinate with responsible teams or individuals for timely web server updates, as delays can leave your application vulnerable. Serve static content (e.g., SPAs) and backend APIs from separate servers to enhance security. This decoupled architecture reduces risk and improves overall security. Updating the Docker image After upgrading your application, its dependencies, or introducing new features, update and publish a new Docker image. This ensures that your application remains current and secure in the continuous development and deployment process. Managing Angular updates through smart planning and advanced tools can enhance app performance and security. It also ensures that your apps remain competitive. With our expertise in Angular updates, your projects can efficiently leverage the latest features, improving your development workflow. Get in touch with us, and our team will assist with your Angular update efforts, keeping your applications up to date and performing at their best.

Angular, React, and Vue.js are the popular front-end frameworks for companies of any size and domain. Each brings valuable features to the table, making the task of choosing one a complex one. How then can you determine the most fitting framework for your application? Often, it's not a mere technological choice, it's rather a mixture of factors including: Team experience. Evaluate if your in-house team is familiar and proficient with the new technology. Talent availability. In case you have no in-house team or need to augment your staff, assess the availability of skilled developers who are well-versed in the chosen frontend framework to ensure that you can hire the necessary resources for your project. Project complexity and specifics. Even though all the frameworks are great, each of them is ideal for certain cases: React is the best fit for highly customizable web apps with complex, interactive UIs, Vue.js is the perfect match for creating single-page, dynamic web applications that take the best of both React and Angular, Angular is an ideal solution for enterprise-level, easily scalable web apps with a rich feature set. Need help in identifying which framework aligns best with your business objectives? Talk to Belitsoft's front-end development experts. React is the Best for Cross-Platform Development React is a front-end JavaScript framework, the best suitable for designing cross-platform web applications that are highly customizable, replete with complex and interactive user interfaces. React is maintained by Meta and a vast community. This is one of the most popular JavaScript frameworks used by many industry-leading companies, such as Meta (Facebook and Instagram), Netflix, PayPal, DropBox, Airbnb, Uber, and BBC. ✅ High scalability and customization. The modular structure of React allows developers to swiftly assemble various pre-built components, fostering convenient customization and scalability. This results in substantial time and cost savings throughout the web application development process. ✅ Flexibility in choosing development tools. React is more of a library than a framework, which means it gives you more flexibility to choose the tools, libraries, and architecture for your project. This is different from Angular or Vue.js, which come with a defined set of rules and patterns. ✅ Code reusability. When developing React applications, the presence of reusable components significantly reduces complexity and coding effort. ✅ Efficient performance. React uses a virtual DOM (Document Object Model) that helps to handle large databases. This eliminates the reliance on traditional DOM methods, optimizing performance and resulting in faster and more efficient operations. ✅ Simplified creation of mobile apps. You can benefit from using the same React-based approach to build native mobile applications with React Native. The seamless migration of components from React to React Native allows validating the UI on mobile devices and making the necessary adjustments to optimize mobile-friendliness. This simplifies the development process and accelerates time-to-market. ✅ Predictability and ease of debugging. Since the data flows in one direction (one-way binding), it's easier to track the changes happening in your application. This also provides a clear understanding of the data flow and decreases data corruption risk. ❌ Fast-paced updates. The React ecosystem is evolving too rapidly. This means developers need to constantly learn and adapt to new ways of doing familiar things, which might decrease productivity. ❌ Requires more expertise from developers. The flexibility of React can also be a disadvantage for some teams. It requires you to make more architectural decisions, which might not be ideal for less experienced developers. Besides, React uses JSX (JavaScript XML) which is a syntax extension for JavaScript. It might require more expertise from developers. Denis V. , React developer at Belitsoft (3+ years of experience with React): "React is the best option if a client requires both web and mobile applications. These are completely different types of applications, however, they can be developed by hiring just one development team instead of two. That significantly reduces the development time and cost. React is ideal for cross-platform development thanks to React Native or even for building VR apps using React-VR.One of the main advantages of React is the performance of React-based apps thanks to the virtual DOM. DOM manipulations are the core of modern interactive web pages. They are extremely resource-intensive JavaScript operations, but React speeds them up using the virtual DOM. Facebook team is working on async rendering to make React-based apps even faster.When comparing React vs Vue vs Angular, it's important to remember that React is a library, while the other two are frameworks. It means that React as a library offers the opportunity to choose what architecture and additional libraries to use, for example, Redux or Mobx, while frameworks force you to use a certain structure in your code, making you use things the way this framework intends. Yes, React developers need to write a large amount of the boilerplate code to follow best practices for building highly scalable and reusable apps. However, there are many professional boilerplates for React, for example, this one. OUR CASE STUDY: React-based web app for the US startup Looking to boost your web app? Our skilled React developers are ready to help! We'll turn your vision into a robust, user-friendly application. Contact us today! Vue.js is the Best for Lightweight, Intuitive Apps Vue.js is an open-source JavaScript Framework used mainly for building dynamic Single Page Applications (SPA). Vue.js features two crucial aspects of its rivals: Angular's two-way data binding and React's virtual DOM. Vue stands out with its flexibility and lightweight nature, making it a unique framework in its own right. ✅ Swiftness and simplicity. Vue's code is concise and straightforward, significantly reducing the lines of code. This makes Vue.js a lightweight framework, ensuring swift download and startup times. This efficiency enables developers to create applications and templates in a time-efficient manner. ✅ Impressive performance. Third-party simulations indicate that Vue.js outperforms Angular and performs on par with React when it comes to manipulating rows and columns in tables. This advantage stems from Vue's utilization of a virtual DOM, enabling efficient operations. Vue's DOM is also lighter compared to the one used by React, contributing to its impressive performance in this context. ✅ Intuitive debugging. In Vue, debugging runs parallel to the coding process, allowing developers, including juniors, to easily debug their code by visualizing the UI as they write it. This feature enhances the debugging experience and facilitates error resolution. ❌ Ecosystem. Vue.js has a limited ecosystem, which means it may not function effectively in older versions of operating systems and web browsers. ❌ Support and trust. Frameworks like Angular and React benefit from the backing of industry giants Google and Facebook, which inherently instills trust among users. However, Vue generally lacks the same level of trust and credibility among audiences. OUR CASE STUDY: Vue.js-based enterprise software for global technology company Our Vue.js developers, armed with comprehensive knowledge and vast experience in frontend development, stands ready to turn your concepts into a dynamic, user-friendly application. Reach out to us today to discuss details! Angular is the Best for Large, Scalable Apps Angular is a TypeScript-based framework, that has replaced a former Angular JS version. Angular JS to Angular migration became vital due to the end of its life and brought multiple benefits. Angular is often preferred by enterprises that require high scalability for their large and constantly growing software. Major companies such as Google, Microsoft Office, Samsung, PayPal, Wix, and Forbes place their reliance on Angular. ✅ Rich functionality. Angular offers a plethora of well-integrated libraries and a suite of developer tools that facilitate the development and scalability of projects. With these resources at their disposal, front-end developers can create robust and powerful applications to meet your requirements effectively and reduce app development costs. ✅ Enterprise-level security. The Angular front-end development framework incorporates built-in safety measures to protect against common vulnerabilities and attacks, including cross-site scripting attacks, malware, and viruses. ✅ Ease to maintain and debug. Maintaining Angular code is typically a straightforward task, thanks to its use of TypeScript. TypeScript aids developers in identifying faulty code during the typing phase itself, facilitating an efficient debugging process. Additionally, Angular imports dependencies, including external code repositories, to streamline app testing. ✅ Smooth scalability and customization. Working on an Angular project as a team offers excellent scalability and customization possibilities, as minor changes made by any team member do not require updating the entire project structure. Furthermore, the code base in Angular maintains high consistency and readability, enhancing project efficiency. ✅ Code reusability. The clean and consistent code of Angular significantly aids in reducing both costs and time-to-market. The code can be reused multiple times without causing any confusion. ❌ Performance. Angular may underperform when dealing with complex and dynamic applications due to its real DOM usage and heavy reliance on third-party libraries. ❌ Verbosity and complexity. Angular is often considered verbose and complex, requiring a lot of code even for simple applications, which can increase development time. ❌ Migration issues. Major updates in Angular often come with breaking changes, making it hard for developers to migrate their existing applications. OUR CASE STUDY: Angular-based BI project for the US hospitality domain Use the over 17 years of front-end development expertise of our Angular developers. Utilizing industry best practices, our team is committed to building a web application that prioritizes customer engagement and satisfaction. Let's work together to create an exceptional web experience for your users. React vs Angular vs Vue: Architecture React React has a simple architecture based on components. These components are like building blocks that you use to create your website or app. Each component represents a part of the user interface (UI), like a button or a form. Each component has its own logic and controls its own rendering, or how it appears on the screen. You can reuse these components wherever you want in your app, which makes your code more organized and easier to manage. React also uses a "virtual DOM" to keep your app running fast. When a component changes, React first updates a virtual representation of the webpage, figures out the most efficient way to make these changes in the real webpage, and then makes those changes. This smart way of updating the webpage is a big part of why React apps feel so smooth and responsive. Vue.js The structure of Vue.js is simple, with all elements designed as self-contained and reusable components. One neat thing about Vue.js is that it keeps your data (the info your app handles) tied to your components. When the data changes, the component knows it needs to update how it looks on the screen. This feature is called "reactive", and it's part of what makes Vue.js easy to use. Vue.js also uses a virtual DOM, just like React. This means that when a component needs to update, Vue.js first figures out the most efficient way to make the change on a virtual model of the webpage, and then it updates the real webpage. This smart process helps keep your app running quickly and smoothly. Angular Angular uses a structure based on modules, components, and services. In Angular, you bundle these components into modules, which help you organize your code better. Each module can be a feature of your app, like a user profile or a shopping cart. Services are where you put code that you want to share across different components. Lastly, Angular uses "directives" to let you add special behavior to elements in your webpage, and "dependency injection" to make it easier to share code and data between different parts of your app. In a nutshell, Angular provides a well-organized structure for creating complex web applications by dividing them into manageable and reusable components, modules, and services. React vs Angular vs Vue: Popularity React, Angular, and Vue.js are often referred to as the "Big Three" frameworks and libraries because they have come to dominate the field in terms of popularity, community support, and adoption by major companies. The search trends tend to favor Angular and React over their younger competitor. Google Trends Results All three frameworks are widely represented on GitHub, with React leading the pack. React: GitHub Stars 181K / Fork 36.9k / Contributors 1538/ Used By 8.8 Million Users Angular: GitHub Stars 79.2K / Fork 20.8k / Contributors 1528 / Used By 2.1 Million Users Vue.js: GitHub Stars 193K / Fork 31.3k / Contributors 404 According to the StackOverflow survey, React and Angular are among the most popular frameworks professional developers use.  React vs Angular vs Vue: Performance In terms of speed, the members of the Big Three are very close. Source: https://www.stefankrause.net/js-frameworks-benchmark7/table.html Source: https://www.stefankrause.net/js-frameworks-benchmark7/table.html As they are technically similar, the actual speed of your project will depend on the skill of the developers. Rever Case Study: Migrating Angular app to Vue.js Luis Elizondo is the Director of Engineering at REVER SaaS Company that develops Idea Management Software, named Rever Score. He does back-end and front-end Web development in this Silicon Valley-based company, founded in 2015 by people that blended their experiences in Toyota, Google, Airbus, Apple, Eurocopter, Rackspace, Procter & Gamble, and a handful of tech startups. They are using Node.js / Express on the backend, vanilla Node.js with no framework for some microservices, and Python for other microservices. Everything runs inside a Docker container. In August 2017, Rever released a new version of their web client using Vue.js. Before that, they were using Angular 2 beta 9. Why did they use beta technology in their products? It was a decision recommended and implemented by the outsourcing company. Their line of thought was something along the lines of "the final Angular version will be ready by the time we finish the product, and we will update every time there's a new beta release"", and they did, for a time, until they realized it was time-consuming and added no real value. In the end, it took them 8 weeks to write the project with the Vue.js JavaScript framework. This was a medium size project from Elizondo's point of view. During that process, they were also rewriting the whole API because there were architectural mistakes on the first version. Elizondo says that he has done extensive research before making a decision to switch their technology stack. ReactJS vs AngularJS vs VueJS. Source: medium.com/reverdev/why-we-moved-from-angular-2-to-vue-js-and-why-we-didnt-choose-react-ef807d9f416 Why we ditched Angular: "I want to focus on the points, the upgrade process, and Typescript. Upgrade to Angular 2. This was not easy because there were many versions we needed to upgrade, doing this while having critical bugs was not an option since we didn’t know what things were broken because of the upgrade and what things were broken because they were already broken. Solve the critical bugs first and then upgrade. Again, not easy because I didn't have all the necessary experience in Angular 2 and the documentation was upgraded. Try solving a bug that is happening on beta9 but you don't know when it was solved or even reported with documentation that refers to Angular 2.0.0 and you´ll know what I mean. This is not Angular's fault, this was just our context. Rewrite the whole thing and redesign the UI in the process. This is the road we took, it was the easiest solution for us, too many things were failing for us to attempt to fix them. We could have done it in Angular 2 as well, or we could experiment if we had other options. We did and I do not regret it. Typescript is good, however, it was not adding real value to our medium size project. It avoids some kinds of bugs, but not all, and we had plenty, probably because of the lack of experience from the outsourcing company. We wanted to avoid that as our team grows, there's something beautiful in watching a new team member being productive after a few hours with Vuej.js, something we felt that we would not achieve with Typescript. Vue.js solves the problems that we had, I'm not saying it will solve yours, and that's why we moved, with our context, the business needs, the timing, and the available resources, I would make the same decision again because it solved our problems. The reason why we ended up using Vue was coding speed and a small learning curve, but those things pay off later, when new developers come to the project they can start being productive in a matter of hours, not days. Why we're not using Angular 4 is because it didn't exist when we made the decision to move to Vue.js". This article accepted some critics in the comments section. Francesco Belladonna, a web developer with Full-Stack experience (JavaScript, HTML, CSS, AngularJS, Redux Ruby on Rails) at Predictable Revenue (Canada) writes: "I feel like we are missing some very important points here. We are comparing a framework (again) with a view library. Not only that, but you are also comparing the speed of prototyping between the two. I could tell you that based on that comparison, you would choose Vue without writing a single line of code. A framework is meant to give you a speed boost at the start of your new product and give consistency later on. However, when developing any kind of SaaS what you really care about is how hard is to maintain such software, as in speed on fixing bugs, implement new features, refactor. React comes with just the view layer, and you are "forced" to take decisions by yourself. I'm surprised people keep listing this as a downside: it is probably the most valuable thing React delivers: freedom of choice. Feel like React setup is complex? Cool, grab one of the many available boilerplates and use one of those, Vue is just doing the same for you. While I like the overall article, I think the author failed on checking the long-term gains of one lib over the other. The more you grow, the less you want a framework, and the more you want freedom of choice. And a bigger community. That being said, this article does one thing really well: scared me a lot regarding Angular2 (or 4 for what is worth), confirming my feeling that it's a framework that came with a lot of issues (I come from Angular1 1 background)". Dennis Brandt, a Senior Programmer / Team leader (Angular, AngularJS, NodeJS, Socket.io) at MyBit BV (the Netherlands) writes: "My team and I use Angular since August 2016, we waited until there was a stable release before even looking at it. We also compared Vue, React, Angular, and even AngularJS (the first version of Angular). Took into account what we needed from the web development frameworks/libraries and the project itself, the scale, and the intended lifespan. "For us, Angular was the clear winner as it provides what we needed, but this doesn't mean we will use Angular for every project. We look at it from the scope and requirements perspective." Learning the syntax of a specific template or language is a breeze for any developer worth his/her paycheck and for me and my team has never been a reason to do or not do something. For us Typescript actually made things easier, the compiler already checks for mistakes, unit testing is simple and as it's a superset of JavaScript (ES6/7) it was almost too easy to pick up. Good that you did the research to figure out what was best for you, the team and the project, but if I can say one thing that I hope you'll keep in mind; Never choose a progressive framework or library because it's familiar or easier. Choose what best fits the requirement of the project at hand." Alex Jover Morales, a Full Stack Engineer (VueJS; Redux; Webpack; Karma, mocha, chai; NodeJS; PHP, Lumen, etc.) at Coosto (The Netherlands) writes: "I worked with the three last year (Angular, Vue, React, in that order), and although my preference goes as well for Vue.js. I'd like to clarify some things in an objective way: What I see about TypeScript in this article usually comes from people that never got into it. Creating an object in TypeScript is as easy as in JavaScript. And it offers lots of stuff, but you need to give it a bit of time (not much really). Once you get there, you don't want to go back, and that's applicable to Vue as well. In fact, I love to combine Vue and TypeScript, even recorded a course. People that come from Angular (especially 1.x) find easier to get into Vue.js, since it shares most of DSL. What takes a while is to learn new practices and patterns of Component architecture. Once you know them, it's really easy to get into both Vue or React. Of course, Angular 2+ takes much more. Personally, the easiest for me was React due to knowing already all the stuff, just needed to go to another syntax, and JSX is literally JS and HTML. Vuex or Redux - they're almost the same. I agree Vuex seems easier, especially because it doesn't need to be immutable (what it's less clean on the other hand), but they're almost the same thing with different names. What is true, lots of things are easier in Vue, for example, lazy loading + code splitting, and the DSL itself. Although, React makes composition easier since it's just JS with almost no framework context. I'm not making an opposite statement, just clarifying there is no silver bullet. They all offer mostly the same, and some find it easy/better with one, others with the other. The best thing is always to analyze and choose what's best for the project/team." 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If not using a Front-End Framework, then What? There are a few alternatives to using a front-end framework for building the user interface of a web application.  One option is to use vanilla or pure JavaScript and build the UI from scratch using just the core language features and APIs.  Another option is to use a library like jQuery, which provides a set of useful functions for working with the DOM and making AJAX requests. Here are a few more options for building the user interface of a web application without using a front-end framework: Server-side rendering. This involves generating the HTML for a web page on the server, rather than in the client's browser. This can be done using a server-side language like PHP, Ruby, or Python, and can be a good option for applications that do not require a lot of client-side interactivity. CSS frameworks. This type of front-end framework provides a set of styles, layout patterns, and design principles for building web interfaces. They are typically focused on providing a consistent look and feel for web applications, and can include styles for common UI elements such as buttons, forms, tables, and more. CSS frameworks can be a useful tool for building the visual aspect of a web application, and can be especially helpful for quickly prototyping or building simple applications. Static site generators. These are tools that can generate static HTML, CSS, and JavaScript files from templates and data sources. They can be a good option for building simple websites or web applications that do not require a dynamic, real-time update of the content. No-code platforms. There are a number of platforms that allow you to build web applications without writing any code. These platforms typically provide a set of pre-built templates and components that you can customize and arrange to create your application. They can be a good option for non-technical users or for prototyping ideas quickly. Hybrid approaches. You can also use a combination of different tools and technologies to build the user interface of a web application. For example, you could use a static site generator to build the basic structure of the application, and then add some interactivity using pure JavaScript or a library like jQuery. JavaScript Front-End Frameworks vs pure JavaScript Why use a front-end Javascript framework? The most commonly used programming language is JavaScript. And the most popular front-end frameworks are JavaScript-based: React (officially, it’s a library), Angular, or Vue.js https://survey.stackoverflow.co/2022 By using pure JavaScript instead of a front-end framework, a developer must create their own structure for organizing and implementing features in their applications. While this can be sometimes a more flexible approach, it can also be more time-consuming and require more effort to maintain the codebase as the application grows and evolves. Some key differences between JavaScript front-end frameworks and pure JavaScript include: Code reusability. Front-end frameworks often provide a set of reusable components so developers don’t have to rebuild them from scratch. React, for example, allows the use of reusable UI components, reducing development time. Conversely, pure JavaScript developers need to create their own code reuse mechanisms if necessary. Code maintenance. Front-end frameworks provide a consistent structure and set of conventions for organizing and implementing code to make it easier for developers to understand and work with code written by others, and reduce the risk of errors or bugs. Pure JavaScript developers must create their own conventions and patterns for organizing and implementing code. Easy-scalable functionality. Front-end frameworks provide out-of-the-box key features of every complex web application such as routing. Pure JavaScript developers must implement them manually. Performance. Front-end frameworks are designed to enhance the rendering and performance of the front end of web applications. React, for example, offers specific strategies for performance optimization. Pure JavaScript may not offer the same level of performance and scalability. Community and ecosystem. Front-end frameworks typically have a large and active community of developers and a wide range of resources and tools available, including documentation, tutorials, and third-party libraries. This can make it easier to find support and resources when working with a front-end framework. Pure JavaScript, as a core programming language, also has a large and active community, but it may not have the same level of resources and tools specifically tailored for building the front-end of web applications. Features of Front-end Frameworks Components Functionality Most frameworks have a reusable set of commonly-used components to construct a UI fast. For example, AuthorCredit component (React) can be used while building a blog or online magazine. It allows displaying a portrait of the author and a short byline about them for each article. And matAutocomplete component (Angular) is useful when you need to show a list of auto-complete options when the user tries to type something in the field. The possibility to quickly build and re-use custom UI components is a distinguishing feature of a modern front-end framework. matAutocomplete Angular component State Management State management is a crucial aspect of front-end development, as it allows components to track and update their own data values without the need for additional code.  A front-end framework's built-in state-handling mechanism makes this process easier by providing tools like the useState() hook or libraries like Redux, XState, and Mbox. These tools, given an initial data value, automatically keep track of and update that value as needed.  Here is an example of how state management is generally easier to implement using a front-end framework compared to using pure JavaScript. Consider a simple front-end application that displays a list of items, and allows the user to add and remove items from the list.  Using pure JavaScript, the developer would need to write code to handle the following tasks: Display the list of items. Add a new item to the list when the user clicks a "Add" button. Remove an item from the list when the user clicks a "Remove" button. Update the display of the list to reflect the current state of the list. To implement these tasks using pure JavaScript, the developer would need to write code to manually update the DOM elements that display the list of items whenever the state of the list changes. This would require a significant amount of code, and could be prone to bugs and maintenance issues. On the other hand, using a front-end framework like React or Vue, the developer can manage the state of the list in a more efficient way.  For example, the developer could use a state management tool provided by the framework to update the state of the list whenever the user clicks the "Add" or "Remove" button, and the framework would automatically update the display of the list to reflect the current state of the list. This can save a significant amount of time and effort compared to writing all of the code from scratch using pure JavaScript. Browser Events Handling In addition to monitoring ongoing state, front-end frameworks also react to events that occur in the browser. Examples of these events include closing the browser window, a web page finishing loading, a form being submitted, and errors occurring. The mechanism behind event handling can be described as follows: "listener code listens for the event to occur, and the handler code runs in response to it happening."   Some examples of such events include: Form events, such as "submit", "reset", "focus", "blur", and "change". These events are fired when a form is submitted, reset, or its elements receive or lose focus, or the value of a form element changes. Mouse events, such as "click", "dblclick", "mousedown", "mouseup", "mouseover", "mouseout", "mousemove", and "contextmenu". These events are fired when the user interacts with the mouse, such as clicking on an element or moving the mouse over an element. Keyboard events, such as "keydown", "keyup", and "keypress". These events are fired when the user interacts with the keyboard, such as pressing or releasing a key. Window events, such as "resize", "scroll", "beforeunload", and "error". These events are fired when the window is resized, scrolled, about to be closed, or an error occurs. Front-end frameworks like React, Angular, and Vue.js provide a range of tools and libraries that can make it faster and easier to implement event handling for these and other browser events compared to using pure JavaScript.  For example, they provide declarative syntax, automatic event listener management, and reactive data binding, which can help the developer focus on the business logic of the application rather than on the low-level details of DOM manipulation. Here are some points in more detail. Declarative syntax Front-end frameworks provide a declarative syntax that allows the developer to specify the desired behavior of the application in a more abstract and concise way, rather than writing imperative code to manipulate the DOM directly.  For example, in the React example, the useEffect() hook is used to attach and remove the "submit" event listener to the form element in a declarative way, rather than using the imperative addEventListener() and removeEventListener() methods. Automatic event listener management Front-end frameworks can automatically manage the lifecycle of event listeners, attaching them when the component is mounted and removing them when the component is unmounted. This can help the developer avoid memory leaks and other issues that might arise from attaching and removing event listeners manually.  For example, in the Angular example, the HostListener decorator is used to attach the "resize" event listener to the window object, and the Angular framework takes care of removing the listener when the component is destroyed. Reactive data binding Front-end frameworks provide reactive data binding, which allows the developer to specify how the UI should change in response to data changes. This can make it easier to handle events that involve updating the UI, as the framework can automatically update the DOM based on the changes in the data model.  For example, in the Vue.js example, the "scroll" event listener is attached to the document object, and the Vue.js framework takes care of updating the DOM based on the changes in the data model caused by the "scroll" event. Client-Side Rendering Client-side rendering is often used to update parts of the UI without requiring a full page reload by using such concepts as, for example, Virtual DOM.  For example, if a user adds an item to their cart in an e-commerce application, the client-side rendering process could be used to update the display of the cart icon to show the correct number of items, update the cart page to show the correct list of items, and potentially update other areas of the UI as well (e.g., updating the total cost of the items in the cart).  The Virtual DOM is a lightweight in-memory representation of the actual Document Object Model (DOM) that is used to update the actual DOM in an efficient way. When a user interacts with a web application, the front-end framework compares the previous and current versions of the Virtual DOM and calculates the minimum number of changes needed to update the actual DOM. This process is called "reconciliation" or "diffing". By using the Virtual DOM, front-end frameworks can significantly improve the performance of a web application, as it reduces the number of costly DOM manipulations that need to be performed. This can be especially beneficial for complex front-end applications that require frequent updates to the UI. While pure JavaScript does not include the Virtual DOM as a built-in feature, it is possible to use pure JavaScript to implement the Virtual DOM concept. However, this would require writing a significant amount of code to handle the various aspects of the Virtual DOM, such as diffing and reconciliation, and could be time-consuming to implement and maintain. Form Processing Front-end developers have to create forms for almost every project. And it’s surprisingly tedious to do. The process involves a lot of repetitive work such as creating input elements, adding field labels, and help texts, field grouping, performing form validation, creating custom validation rules, modifying default validation messages, forms theming, and much more. Front-end frameworks have libraries that make form building and validating much easier. Here is an example of why form processing is generally better to do with a front-end framework compared to using pure JavaScript: Consider a simple form that allows a user to enter their name and email address, and then submit the form to send the data to the server.  Using pure JavaScript, the developer would need to write code to handle the following tasks: Display the form fields and submit button. The developer can use pre-built UI components provided by the framework to display the form fields and submit button. Validate the form input. The developer can use form validation tools provided by the framework to check that the name and email fields are not empty and that the email field is a valid email address. Display error messages if the form input is invalid. The developer can use the form validation tools provided by the framework to display error messages if the form input is invalid. Send the form data to the server when the submit button is clicked. The developer can use an HTTP library provided by the framework, or make an HTTP request using pure JavaScript, to send the form data to the server when the submit button is clicked. Display a success or error message depending on the server's response. The developer can use the framework's UI components and state management tools to display a success or error message depending on the server's response. Client-Side Routing There are also several reasons why using a front-end framework can be a better choice for implementing client-side routing than using pure JavaScript. Advanced features. Front-end frameworks usually provide a range of advanced features for client-side routing, such as route-level code splitting, lazy loading, navigation guards, transition animations, and more. These features can make it easier to implement complex routing scenarios and provide a better user experience for the application. Ecosystem. Front-end frameworks usually have a large and active community of developers, which can provide a wealth of resources, tools, and libraries for working with client-side routing. This can make it easier to find solutions to common routing problems and to integrate the routing mechanism with other libraries or APIs. Maintenance. Front-end frameworks often provide a unified and consistent API for working with client-side routing, which can make it easier to maintain the routing code over time. This is especially useful if the application has a large number of routes and requires frequent updates to the routing mechanism. Reusability. Front-end frameworks often provide reusable components that can be used across different routes, which can make it easier to build and maintain a consistent and coherent UI for the application. This can save time and effort compared to building the UI from scratch for each route using pure JavaScript. Errors Handling and Reporting Unlike the backend, frontend code doesn't run on a single platform but on dozens of browsers and device types. At the same time, users almost never report UI glitches, slow performance, and broken interfaces, they just leave with a bad impression. Businesses want their web apps to remain working even if a front-end error occurs, and, in the worst cases, show readable and understandable messages to users. The support team also should get the error code to resolve issues ASAP. It’s easier to handle and report front-end errors using appropriate frameworks. For example, libraries like React-Error-Boundary can help write less code for this purpose. Frameworks provide mechanisms like tracking errors centrally (mostly for unexpected errors) with error handlers and their functionality easily may be extended by third-party bug tracking and monitoring solution. With error handling and reporting tools, located centrally, developers may scale the app or modify the error handling through one file and update it globally. Facilitation of Tests Writing  Frontend testing focus on the validation of menus, forms, buttons, and other web application elements visible to end users. Tests check out how quickly elements load, what are their response times to user actions, and so on. Front-end frameworks have extensive testing tools with capabilities from unit to integration testing. Test coverage ensures your web software continues to behave in the way that you'd expect and gives you confidence in your UI code. Using a JavaScript front-end framework can facilitate test writing compared to using separate libraries or vanilla JavaScript or jQuery because it provides a structured and consistent approach to testing. Here is an example of how you might write tests for the login form using vanilla JavaScript or jQuery, and how this approach may not be as structured and consistent as using a JavaScript front-end framework. To test the login form using vanilla JavaScript or jQuery, you would need to manually create the form elements and add them to the DOM (Document Object Model). You could then use JavaScript or jQuery functions to simulate user actions and verify the form's behavior. This approach may not be as structured and consistent as using a JavaScript front-end framework, because you are responsible for manually creating and manipulating the DOM elements and handling the testing process yourself. This can make it more difficult to write and maintain tests, as you need to manage the details of the testing process manually. By contrast, using a JavaScript front-end framework such as React, Angular, or Vue.js provides a more structured and consistent approach to testing, as it includes built-in tools and features for rendering and interacting with components in a test environment. When to Use a Front-end Framework For building Single-Page Applications  Single-Page Applications are those ones that use an architecture where data updates and navigation occur without page reloading. For example, dashboard apps. The best way to build such applications, where rich interactivity, deep session depth, and non-trivial stateful UI logic are required, is by using front-end frameworks.  For building Server-Side Rendering Applications When the initial load performance for the app is absolutely critical or when your web app is sensitive to SEO, server-side rendering is applied.  For such cases, the front-end frameworks provide APIs that allow utilizing a server to generate an HTML page for users without the necessity to see the white screen, while the browser loads JavaScript files. Server-side rendering greatly improves Core Web Vital metrics such as Largest Contentful Paint (LCP). To speed up your site's performance even further, static-site generation techniques, also known as JAMStack, are used. Front-end framework helps pre-render an entire application into HTML and serve them as static files. Let’s build an interactive and responsive UI that your app users will love. Our front-end developers apply best practices to write top-quality code and deliver the look and functionality you expect rapidly and within a budget.

2025 Perspective: Angular Is Still Enterprise-Strong "With giants like Google supporting it, Angular has built a solid reputation in enterprise software." — Medium, 2025 Even with forecasts of its decline, Angular remains a momentum in large-scale applications, proving that modernizing your front end remains a solid, long-term investment. Angular not only modernizes your UI - but it’s also a proven, enterprise-grade framework backed by Google and powerful tools like Angular Universal. Why Angular? JSF is a server-side framework for building the front end of Java-based web applications. Angular is a client-side framework by default for building user interfaces of web applications with any backend including Java. Moreover, with tools such as Angular Universal, you can make Angular work as a server-side UI framework. Angular is a widely-used framework and platform for building Single Page Applications (SPAs), developed and supported by Google. SPA web applications don't reload for each user's click. That's why such apps get positive user feedback and became mainstream in web building. ‘JSF has an overhead on the server side compared to JS frameworks like Angular. JSF needs to create a ViewRoot for each request for rendering, executing ajax events, and so on. That's much more CPU usage on the server side. I would always build web applications with JSF but nothing social, which expects millions of users a day. It better fits something like intranet, enterprise, backend applications.’ Thomas Andraschko, PrimeFaces Core Developer (25 Feb 2021) JSF vs Angular: Architecture, Performance, and Maintainability Compare the two based on architecture, developer experience, performance, and long-term support to determine if a modernization move makes sense. Aspect JSF Angular Rendering Supports partial updates via , but defaults to full page loads; AJAX setup is manual SPA architecture; default behavior includes dynamic content updates without page reloads Architecture Backend and frontend are tightly connected - adding features often needs workarounds Frontend is separate from the backend. Built with reusable components that simplify updates and scaling Developer Experience Best for teams already deep in Java. UI logic is more difficult to write and test Frontend developers enjoy familiar CLI tools, testing libraries, and workflow support Performance Heavy load on the server, especially when handling lots of views or users Offloads rendering to client; reduces backend load and improves UI responsiveness Maintainability Harder to upgrade due to tight backend coupling and dependency on full-stack Java knowledge Easier to maintain; UI is decoupled from backend and follows modern web standards Community & Ecosystem (2025) Fewer updates and a smaller community. Most new Java apps are built with other tools Still actively maintained by Google. Strong community and rich ecosystem of libraries and tools Best Fit For Internal enterprise tools that won’t change much or don’t need flashy UIs Ideal for modern web apps, high-interaction dashboards, and systems that require scalability and long-term support Is JSF obsoleted? “A Look Back: JSF use has waned over the years as robust JavaScript frameworks have arisen.” — William Corrie, Principal Architect at CareCentrix, LinkedIn, Apr 2025 The last "relevant" tutorial at Youtube on JSF was released years ago... Numerous complaints about JSF are mostly related to old versions and some of them are now outdated. However, companies may still use JSF 1.0, first realized 15 years ago (or, at best, JSF 2.0) with a lot of ad-hoc programming. As Arjan Tijms, a project lead for JSF, stated in his article on Oracle blog Java for the enterprise: What to expect in Jakarta EE 10: "The next version of JSF will be JSF 4.0. Its own major theme will be removing legacy functionality that has already been deprecated. Plus, legacy features that haven’t been deprecated before will be deprecated and likely removed in a future release. Support for Jakarta Server Pages (JSP) as a view declaration language will be removed as well. As for bigger features, a prototype is currently in the works to add a simple REST lifecycle to JSF. This is not intended as a full-featured REST framework." Rollbar’s 2025 analysis confirms JSF no longer ranks among the top Java web frameworks - most enterprise projects now favor Spring, Quarkus, or Micronaut. In this regard, migration is absolutely necessary whether it will be to a newer JSF version or to another UI framework for Java web applications. The question is when to do this: if not today, it may be more costly to make it tomorrow if you plan to improve your software application.  betterprojectsfaster.com/guide/java-full-stack-report-2022-12/fe-web/ Ihatejsf.com, a platform to share the frustrations with using JSF. Framework Migration "Framework migrations are significant undertakings; carefully evaluate your team's requirements and long‑term maintenance needs before committing." — Rollbar, 2025 Moving from JSF to Angular isn’t just a tech swap, it’s a strategic move. You’ll need clear goals, stakeholder alignment, and a phased migration plan to ensure success. Planning a phased JSF-to-Angular migration? Our team can audit your current UI stack analyzing performance bottlenecks, developer efficiency, and UX and deliver a clear, phased modernization plan aligned to your goals. Talk to our experts.

Why Angular Still Wins for Enterprise E-Commerce Choosing Angular for ecommerce pays off as teams grow. Developers don’t have to reverse-engineer just to add a new widget. Angular’s structure keeps teams aligned - they move on by following the same patterns. Routing, state management with RxJS, and native support for single‑page applications (SPA) are built in. Only the part of the screen that needs to change is refreshed, so users aren’t stuck watching a blank page load. Load‑on‑scroll catalogs, dynamic pricing updates, real‑time inventory - updates happen inside the existing page instead of forcing a full reload. For mobile-first brands, Angular supports Progressive Web App features out of the box. You get offline support, and push notifications - without rewriting the app or maintaining a separate native version. Build PWAs because mobile cart abandonment drops when the interface behaves like a native app. Server-Side Rendering (via Angular Universal) improves first-paint time, helps crawlers index product pages, and makes high-intent landing pages load. Angular doesn’t need extra plugins or community hacks to pull this off. Just run SSR for any e-commerce project with search functionality. Component architecture is where Angular fits e-commerce best. Complex UIs - cart logic, account management, admin dashboards - benefit from reusable, isolated components. Teams don’t have to rebuild forms or filter menus every time. They extend, inject, and reuse.   Angular Front Ends Fit Into the Rest of Your Stack Choosing Angular for the UI won’t disturb your existing technology landscape - it will integrate with it. API A custom e-commerce solution must integrate with various back-end systems and third-party services. Angular development approach is backend-agnostic and API-driven, enabling integration with any technology stack on the server side. What that looks like in practice depends on the project. On one build, there may be a full MEAN stack (MongoDB, Express, Angular, Node) handling both sides of the integration. On others, Angular front-end may be connected to .NET or Java. Whether it’s a legacy backend, a modern SaaS service, or something in between, the Angular UI can talk to it through REST or GraphQL endpoints. Angular also works fluently with headless setups. If you’re running commercetools, BigCommerce, or Shopify Plus in API mode, Angular can pull in products, pricing, and promotions from the backend via exposed endpoints. The same applies for content: if a client is using Strapi or Contentful for CMS, developers can integrate those APIs into Angular components that render content dynamically. Payments Angular developers can build PCI-compliant integrations with Stripe, Braintree, PayPal, Authorize.net - wired directly into the UI, not patched in later. On mobile, they can use Stripe’s SDK for subscriptions and one-touch payments. Shipping plus Fulfillment Angular developers can connect Angular apps to FedEx, UPS, and USPS to automate shipping estimates, label printing, and tracking links. They can extend a QuickBooks integration to support additional carriers and plug in tools like EasyPost and ShipStation. Marketing plus Analytics Angular developers integrate tools like GA4, Mixpanel, or custom data layers depending on the analytics maturity of the client. Marketing workflows - email automation, CRM sync, campaign triggers - are configured through API connections to Mailchimp, Salesforce, or HubSpot.  ERP plus CRM Systems Angular developers build integrations to SAP, Microsoft Dynamics, Oracle, and other enterprise systems through API. They configure mapping, transformations, and access controls - and when needed, build bridge services to keep things decoupled and maintainable. Engineers define data flows and access patterns first, then build around API contracts and secure the data layer (OAuth, keys, and token management). If direct integration isn’t viable, they create middleware to buffer legacy constraints or orchestrate multi-system sync. You get an Angular-based storefront that works with the way your business already runs - not a parallel system that becomes a pain to support. Performance and Scalability in Angular E-Commerce Angular makes promises about e-commerce platform performance. The moment when those promises get tested is when product pages spike under a campaign, when Black Friday traffic floods in, when mobile users scroll through dozens of variants and the site still responds in real time. Angular apps can be designed to load only what’s needed. That means lazy loading feature modules so admin dashboards, account tools, or rarely used flows don’t ship with the initial bundle. In one Belitsoft's case, a coupon marketplace app tried to load 5,000 game records at startup. The result was obvious: stall, delay, drop-off. After refactoring, it loaded the first 10 and streamed the rest. The app felt immediate again. Angular’s Ahead-of-Time (AOT) compilation pushes template rendering to the build step, so the browser has less work to do at runtime, resulting in faster load and render times. Tree shaking strips out dead imports. Combined with asset compression and image optimization, the result is lean.   Angular frontend is stateless by design. Once built, Angular apps behave like a brochure that’s downloaded once and then interacts with live services. That means horizontal scaling is simple: drop them behind a CDN or a cloud load balancer, and the site doesn’t care if you’re serving one user or one million. State lives in tokens or APIs. Nothing breaks under scale because nothing depends on a single server. As an additional optimization step, Angular developers use SSR (Angular Universal) to push meaningful content to the screen before Angular even boots. The Node‑based server processes the first render. Angular takes over after. That gives fast initial paint, lower time-to-interactive, and lets crawlers see actual content - not a JavaScript shell. On high-traffic product pages, it means faster perception and better ranking. On mobile, it means fewer users bouncing before the app even starts. They also split e-commerce platforms into functional modules: product catalog, user flows, cart and checkout, content integration. That modular architecture is a growth strategy to avoid technical debt before it becomes unavoidable. With tools like NgRx and selective change detection, Angular keeps UI performance stable even when the app’s dealing with hundreds of SKUs, paginated search results, and persistent filters. Infinite scroll is engineered to avoid flooding the DOM. Behind it all, deployment can be configured for growth too. CDNs cache what can be cached. API backends are cloud-hosted, with auto-scaling policies to cope with demand. If the store goes viral, the infrastructure flexes. If it’s a slow month, the cost stays low. No platform rewrites.   For the client, this means an Angular e-commerce store that not only works well on day one, but continues to deliver fast, reliable service as your customer traffic scales up. Security in Angular E-commerce Projects Front-End Angular’s framework includes built-in defenses - automatic content sanitization, guarded templating, restricted DOM manipulation. Input is validated before it's sent, and user interactions are assumed untrusted by default. Form-level controls are set up to prevent broken flows or malformed payloads. When dynamic HTML is unavoidable - say, rendering from a CMS - Angular developers use DomSanitizer, with context-specific rules. Components that could expose the client side to injection are reviewed individually. Route access is locked down based on role. Angular guards is used to make admin screens inaccessible to unauthorized users. Sensitive states are tied to authentication flows, and nothing loads by default. Authentication, Sessions, and Account-Level Security Most apps rely on token-based authentication - either JWT or secure cookies, depending on the session model. Angular developers configure session storage and token expiration to balance user experience and risk. Admin logins, if present, are given additional controls: stricter timeouts, enforced 2FA, and audit trail requirements when requested. When social login is used (Google, Facebook, etc.), the integration goes through the provider’s SDK with controlled scopes. Data transmission is encrypted by default - HTTPS is enforced from day one. Back-End and Data Layer Security on the server side covers the full stack. Input validation should be replicated - nothing should be trusted. SQL injection risks must be eliminated with parameterized queries, ORM protections, and manual review of dynamic operations. API endpoints must be protected by access control layers tied to role and context. For payment flows, gateway integrations offload PCI scope. Special approaches are used to keep credit card data out of the app entirely. Tokenization is standard, and the app never stores cardholder data. If sensitive data must be stored - for example, user PII or order history - it’s encrypted. Secrets are kept in vault services or injected securely at runtime. Credentials are never hard-coded or stored in repos. Patching, and Ongoing Risk Management Security reviews should be implemented in the code process. Angular and supporting libraries are patched on release. Angular team must track NPM packages and propose upgrade plans if a vulnerability affects the deployed app. Version pinning and package audits are part of the CI setup. Compliance For PCI DSS, the best practice is building to minimize scope - use payment provider infrastructure to capture card data, enforce password policies, and ensure no card details are written to disk. If the app needs to support transaction logging or access tracking, it must be built into the workflow. For GDPR, consent flows should be implemented at page load: cookie banners, opt-ins, data erasure requests. If the app operates in the U.S., developers must adapt the same systems for CCPA - covering opt-out language and data access requests. This includes conditional activation of third-party scripts and restricting data sharing until user actions confirm consent. Deployment and Infrastructure Practices Good Angular development company also manages cloud infrastructure - firewall configuration, DDoS protection (when available through the cloud provider), and backup policies for data recovery. They advise on setup: TLS configuration, access control, API gateway policies. Access credentials to hosting environments are kept in secure vaults. If access logs are required, Angular ecommerce developers work with the client’s operations team. What Security Looks Like in Practice No unauthenticated user can see internal data. No admin panel runs without access checks. No sensitive data is stored unless it’s encrypted. No payment flow runs outside a certified third-party process. Belitsoft Uses Angular for E-Commerce The team that turns Angular into a working e-commerce system Belitsoft Angular developers don’t just know the syntax - they’ve solved actual e-commerce problems with it, across various industries, use cases, and complexity levels. Take the gaming-enabled coupon marketplace they rebuilt. Originally built in AngularJS, the app needed a full migration to modern Angular - for performance and for feature expansion. The platform lets users form teams, play games, and unlock group discounts - a UX that combines shopping mechanics with multiplayer game logic. Belitsoft not only refactored the front-end into reusable Angular components, but also rebuilt the checkout flow for speed, stability, and lower bounce rates. Conversion went up, maintenance costs went down - that’s what clients actually want. Belitsoft’s portfolio includes Angular-based e-commerce work for European retailers, including custom storefronts with integrated payment gateways and lead-gen from social channels. Our teams have built full-cycle platforms - from product pages to cart logic to payment confirmation - and optimized every step of the buying process.  Belitsoft runs with over 200 full-time specialists: Angular developers, QA engineers, product managers, and backend teams - all under one roof. Our Angular stack includes RxJS for reactive flows, NgRx/Redux for complex state management, and TypeScript across the board. They’re baseline tools when you’re running product filters, inventory logic, and user authentication - all on the same page, without reloads. E-commerce punishes mistakes: slow load times, abandoned carts, broken mobile layouts. Belitsoft builds with that pressure in mind: cart UIs should adapt to screen size and session state, payment systems must actually work, product modules shouldn’t break when the inventory system hiccups. In every Angular project, we're focused on checkout friction, search responsiveness, and mobile-first interaction. That’s how we raise cart completion: cleaner search filters, one-page checkout, faster product detail loads.  Belitsoft bakes in secure payment gateway integrations, fraud prevention steps, and compliance checks directly into the Angular codebase. It’s part of building a platform that survives in production.  Customization and Feature Development One of the primary reasons companies opt for a custom-built e-commerce solution is the need for highly specialized features and unique user experiences. Belitsoft's development team builds complex, bespoke functionalities from scratch and tailor the product to exact business requirements. Whether you envision a 3D product configurator, a custom discount engine, an interactive storefront game, or a tailor-made analytics dashboard, Belitsoft has likely done something similar and can deliver it within an Angular framework.  For different clients, we have built interactive dashboards (using Angular’s charting libraries and real-time data binding) to visualize sales or user data, as well as custom product management interfaces with very specific workflows.  Belitsoft’s full-stack expertise means if it can be coded, we can incorporate it into the e-commerce platform. We often start with a requirements gathering and brainstorming. Belitsoft’s team includes both developers and business analysts who help translate ideas into technical specifications. Angular’s component-based structure allows Belitsoft to develop new feature modules in isolation and then plug them into the overall application. If a feature is highly interactive (such as a product customizer where users pick options and see a live preview), Belitsoft uses Angular’s two-way data binding and possibly WebSocket integrations for real-time updates. If the feature requires heavy computation (like generating a custom price quote based on many parameters), we may implement part of it on the server.  Intuitive, brand-aligned UX/UI for the e-commerce platform We either work with the client’s design team or provide their own UI/UX design services. Belitsoft has in-house designers. During the design phase, we gather the client’s branding guidelines, preferred color schemes, logos, and design ideas. Belitsoft’s designers produce wireframes and prototypes for key screens like the home page, product pages, cart, and custom feature screens. Once the visual design is approved, the development team implements it in Angular, using Angular Material or custom CSS frameworks. We pay attention to responsive design so that the experience is consistent across devices. Belitsoft can also integrate a CMS for content management (managing homepage banners, blog content, etc.) so that the marketing team can easily update the UI text or images without developer intervention (for example, inserting a promo banner via a headless CMS that the Angular app pulls in).  Development Process and Collaboration Most projects follow an Agile rhythm, usually two-week sprints. For fixed-scope projects - say, migrating a system with no moving parts - we can use waterfall. Belitsoft assigns a project manager, sometimes paired with a business analyst. Clients can sit in on sprint reviews, give feedback during demos, or adjust priorities between cycles. Belitsoft works in Slack, Teams, Zoom, Jira - whatever the client uses.  On larger builds, especially ones touching complex domains or legacy systems, Belitsoft brings in a solution architect or domain-specific analyst. These roles work directly with client-side stakeholders to unpack high-level goals into smaller, technically scoped work. Our QA engineers test manually and write automation scripts where coverage matters - front-end workflows, calculations, integration points. Test findings go into Jira, fixes move quickly. Diagrams, interface descriptions, setup instructions - these come together alongside the code. If the client plans to maintain the system, Belitsoft provides walkthroughs. If not, we continue support - either as structured maintenance or as-needed troubleshooting. The combination of technical prowess and focus on user-centric design enables Belitsoft to deliver e-commerce solutions - functionally rich, delightful to use and aligned with the client’s brand identity. Cost, Timeline, and ROI Belitsoft works closely with clients to ensure costs and timelines are well-estimated. At the start of a project, Belitsoft typically conducts a detailed discovery or estimation phase where requirements are clarified and features are prioritized. Based on the scope, we recommend a suitable engagement model - either Fixed-Price or Time & Materials (T&M), or even a Dedicated Team model. Fixed-Price Model Best suited for smaller projects or those with a well-defined, unchanging scope (for example, a straightforward e-commerce MVP or a short-term development sprint). In a fixed-price engagement, Belitsoft provides a detailed quotation up front, and commits to delivering the agreed scope within that budget and a mutually agreed timeline. This model gives the client cost certainty. Belitsoft ensures that all requirements are fully understood beforehand because changes mid-stream would require re-estimation. Typically, fixed-price projects have strictly determined deadlines and limited budgets. Belitsoft’s project planning in these cases is very thorough - we include a buffer for risk and ensure milestones are met to deliver on time. For example, a 3-month project to develop a custom Shopify-like MVP with Angular might be done fixed-price if all features are known. Time & Materials Ideal for medium to large projects, or those where scope may evolve (which is often true of custom e-commerce as user feedback or market changes can prompt new requirements). In T&M, the client pays for the actual effort (hours) expended, usually on a periodic basis. Belitsoft often uses T&M, where clients' priorities may shift each sprint. Features can be added or changed on the fly and the timeline can adapt as needed. We track time and provide transparency into how hours are used. Dedicated Team / Cost-Plus For ongoing development needs or very large-scale initiatives, Belitsoft can provide a dedicated team of developers, designers, QAs, etc., acting as an extension of the client’s own team. This is a variant of T&M, usually on a monthly rate per team member (plus a management fee). It’s suited for product companies or enterprises wanting to continuously develop and improve an e-commerce platform over years. This model is common when an in-house team needs augmentation for long-term projects Post-Launch Support and Maintenance Choosing Belitsoft for development means gaining a reliable support partner post-launch.  Your Angular e-commerce application will remain up-to-date, secure, and running at peak performance.  One specific aspect of maintenance is keeping the Angular framework and related libraries up-to-date. Belitsoft offers Angular upgrade services to migrate your application to the latest versions in a planned manner. When you have Belitsoft as your partner, we will monitor Angular releases (as well as updates to any integrated services or dependencies) and recommend when it’s time to upgrade. We often test the upgrade on a staging environment first, ensuring that all functionality remains intact.  With options for 24/7 support, proactive maintenance, and continuous improvement, Belitsoft covers the entire lifecycle of the application. This allows the client to focus on business operations and strategy, while Belitsoft takes care of keeping the technology in top shape. The peace of mind that comes from knowing experts are on standby to fix any problem and to enhance the platform over time is a significant benefit of partnering with Belitsoft for your custom e-commerce solution.