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Understanding React Components and Architecture in ReactJS Development Services

12/01/2024

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React has emerged as a powerhouse, thanks to its component-based architecture. If you’re a newcomer or someone looking to deepen your understanding of React components, you’re in the right place. Let’s break down the fundamentals of React’s component-based architecture in plain and simple terms.

What Are React Components?

At its core, React is all about components. But what exactly is a component? Well, think of a component as a reusable building block for your user interface. It’s like LEGO bricks for web development. Each component represents a specific part of your application’s UI, encapsulating its functionality and appearance.

Read more about React Component Lifecycle phases.

There are two main types of components in React: Functional Components and Class Components. Functional components are concise and focused solely on rendering UI, while class components have additional features like state and lifecycle methods. In recent versions of React, the introduction of Hooks has made functional components the preferred choice for many developers.

The Component-Based Architecture

Now, let’s dive into the heart of React’s magic—its component-based architecture. Unlike traditional frameworks, where you build pages, React encourages you to break down your UI into small, reusable components. This modular approach brings several advantages to the table.

1. Reusability:

Components are like building blocks that you can use and reuse across your application. Need a button? Create a button component. Want to display a user profile? Craft a profile component. This reusability not only saves time but also promotes a consistent and maintainable codebase.

2. Maintainability:

Since each component is responsible for a specific part of the UI, making changes or fixing issues becomes a breeze. You don’t have to scour through a massive codebase to find what you’re looking for. Just locate the relevant component, make your adjustments, and you’re done.

3. Scalability:

As your application grows, the component-based architecture scales effortlessly. New features can be implemented by adding new components without disrupting existing functionality. It’s like adding more LEGO pieces to your creation—your structure remains stable, and you can keep expanding.

4. Collaboration:

Component-based development is a dream for collaborative projects. Different team members can work on different components simultaneously without stepping on each other’s toes. This division of labor enhances productivity and fosters a smoother development process.

5. Testing and Debugging:

With components, testing becomes more granular and focused. You can isolate and test each component independently, ensuring that it behaves as expected. If an issue arises, pinpointing the problem is more straightforward, making debugging less of a headache.

Anatomy of a React Component

Let’s break down the basic structure of a React component:

In this simple example, we have a functional component (MyComponent) and a class component (MyClassComponent). Both achieve the same result—a heading inside a div. The difference lies in their syntax and additional features offered by class components.

Conclusion

In a nutshell, React’s component-based architecture is a game-changer in the world of web development. By breaking down your UI into modular, reusable components, you gain advantages in terms of reusability, maintainability, scalability, collaboration, and testing. Whether you’re a beginner or a seasoned developer, understanding and embracing this approach can elevate your React game.

So, the next time you’re building a web application with React, think of it as assembling a digital LEGO masterpiece—one component at a time. Happy coding!

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    This September 6–7, SupremeTech will host its first AI-Driven Development Hackathon, a landmark event designed to inspire teams to embrace artificial intelligence as a core part of how we work, innovate, and grow. The Hackathon is not just a competition. It is a statement of SupremeTech’s belief that learning and innovation are the backbone of both personal and organizational growth. Through this event, our engineers and product teams will have the opportunity to experiment, challenge themselves, and use AI to reimagine the way they work. By fostering creativity and adaptability, the Hackathon aims to enhance work efficiency today while leading the way for AI-assisted development as a core strength of our future. Why Hackathon Matters Now There are several ways companies may choose to approach and apply AI in their working process: training, workshop,… For SupremeTech we want to inspire our developers with a fun blend of innovative and competitive experiences. Hackathon is exactly the format we’re looking for. They compress ideation, experimentation, and execution into an intensive timeframe, creating an environment where bold ideas can quickly turn into actionable solutions. Furthermore, the high pressure of time would foster teamwork, collaboration and bonding to the next level. At SupremeTech, the AI Hackathon 2025 will serve as: A safe space to test AI ideas from concept to execution.A platform to help employees step out of their comfort zones and practice product-building skills.An accelerator of cross-functional teamwork, where developers, designers, and product leaders work together with AI as a co-pilot.A signal to clients and partners that SupremeTech is forward-looking, innovation-driven, and committed to AI adoption. SupremeTech AI Hackathon 2025 Overview Message & Objective:To raise awareness of the importance of continuous learning, growth, and self-breakthrough, enabling each individual to move forward together in collective progress. Format:The main theme of this Hackathon is “AI-Driven Development” focusing on how teams can utilize AI tools to build solutions and solve real-world problems.  Teams will have 22 hours to complete their challenge, followed by a 30-minute demo and pitching session to the judges. Results will be announced after the competition. Evaluation Criteria:Projects will be assessed across four dimensions: Business Value: Market fit, feasibility, economic efficiency, and contribution to SupremeTech’s brand.Engineering Quality: Coding standards, scalability, maintainability, security, and UI/UX design.Technical Execution: Completion of core features, testing outcomes, innovative use of AI tools, and potential for future expansion.Presentation & Pitching: Clarity of communication, demo quality, time management, team passion, and user experience. Main Business Domains Covered: The Hackathon challenges will center on the Retail sector, with a strong emphasis on Omnichannel and Luxury Retail Businesses. Within this domain, teams will explore AI-driven solutions in three key areas: Customer ExperienceMobile OrderingCustomer Data What Leaders Think About This AI Hackathon To provide insight into the vision behind the Hackathon, we spoke with its three leaders of SupremeTech, who directly run this initiative: Mr. Bình (CEO), Mr. Vĩ (Vice President), and Mr. Đào (CTO). Mr. Bình, CEO of SupremeTech “2025 is a turning point for us, a second-time startup for SupremeTech. The industry is moving very fast with AI, and I want our people to be at the front line of this change, not just following behind.” For Mr. Bình, the Hackathon is about more than prototypes. It is about building a culture where innovation and continuous learning are second nature. He hopes the event will give SupremeTech members the awareness that AI is not some distant future, but a tool they can apply today to enhance their work. To clients and partners, the Hackathon demonstrates that SupremeTech is serious about innovation and ready to bring AI-driven value into real projects. Mr. Vĩ, Vice President of SupremeTech From his perspective, the Hackathon plays a strategic role in long-term talent development. “Hopefully, through this AI hackathon, we will contribute to spreading the AI-assist mindset to a large number of company members, thereby popularizing AI in all projects at SupremeTech. In order to improve efficiency and quality, optimize costs to bring benefits to customers and the company.” He expects to see teams not only moving fast but also integrating AI across the entire development process. Beyond internal growth, the Hackathon sends a message to clients: SupremeTech is building a strategic roadmap for AI-assisted development that will optimize costs, shorten delivery time, and raise product quality. Mr. Đào, CTO of SupremeTech When judging, Mr. Đào will look for a balance between creativity and practical application. Both, he believes, are equally important. “The role of developers will not change much, but their skills will. Engineers will need to level up, becoming more capable as they learn to work alongside AI.” For him, the Hackathon represents a chance for teams to explore while ensuring their ideas can translate into real-world impact. >>> Read more related articles: How a Hackathon Changed My Life – A Personal Story from the CEO of SupremeTechHow Could You Join a Hackathon Without Knowing This? Our Developers Are Preparing for D-Day As the countdown to September 6 approaches, excitement is building across SupremeTech. Teams are forming, ideas are being exchanged, and strategies are taking shape. For our developers, this Hackathon is more than just a challenge, it is a chance to step outside their comfort zones, test their skills under pressure. Stay Tuned for Our Upcoming Updates The SupremeTech AI Hackathon 2025 is the beginning of a larger journey. It is about preparing people to work smarter with AI, strengthening a culture of innovation, and ultimately shaping the future of AI-assisted development in SupremeTech and beyond. By creating this space for learning and experimentation, SupremeTech is reaffirming its commitment to being both a reliable partner today and a forward-looking innovator tomorrow. 📩 Read more articles about us here: https://www.supremetech.vn/blog/

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        When Technology Meets a Pioneering Spirit

        SupremeTech’s Hackathon 2025 is not just a coding competition, it’s a place where bold ideas are tested, limits are broken, and new connections are formed. Every team carries its own story – about why they joined, their role in the group, or what they expect to gain after this intense yet inspiring journey. Among them, we had the chance to chat with Quang Dũng, a Technical Leader at SupremeTech, who is participating in a Hackathon for the very first time – while also taking on the role of team leader. Usually busy with deadlines and lines of code, this Hackathon is his opportunity to step away from routine work and challenge himself in a completely different way. We listened to his thoughts on challenges, pioneering spirit, and what he hopes to take away from this event. Let’s join SupremeTech and Quang Dũng in this conversation about the Hackathon! Q&A with Quang Dũng 1. Is this your first time joining a Hackathon?Yes, this is my first Hackathon. Everything feels new: the intensity, the pressure, and how teamwork changes under strict time limits. I wanted to experience this firsthand and compare it with the usual way of running projects. 2. What made you decide to sign up for the event?I wanted to challenge myself – to see how far I can go applying AI in real-world work. This is an opportunity for me and my team to pioneer ways of leveraging AI Copilot in a small group project of 3–5 people, while learning new workflows and testing practical applications. And of course, the prizes are also very attractive – hard to resist! Who knows, maybe I can go home and tell my wife that just two days of Hackathon brought back 50 million VND! (laughs). 3. What is your role in the team? If given the choice, what field would you like your project to be applied to?I’m the team leader – responsible for planning, setting the initial direction, and building a sample demo so everyone has a clear vision. In other words, I set the rhythm so the whole team can work smoothly together. If I had the chance to choose a project topic, I’d want it applied to practical areas like booking/reservation systems or internal management tools such as resource and project management. These fields are highly relevant to business needs and can create immediate value. 4. If you had to describe SupremeTech’s AI Hackathon in three words, what would they be? Challenge – Pioneer – Connection. Challenge: because everyone here must push beyond their own limits.Pioneer: because we are applying the latest AI technologies to real-world problems.Connection: connecting people, ideas, and the future of technology. 5. What do you expect to gain from this Hackathon? In my daily work, I’m often involved in project estimation. I expect this event will help me learn how to integrate AI Copilot into product development workflows. That could make estimations more accurate, save time, and improve overall efficiency at the company. In other words, what I look forward to most is not just the prize, but the knowledge and experience that can truly be applied to work. >> Read related articles: How a Hackathon Changed My Life – A Personal Story from the CEO of SupremeTech Closing SupremeTech’s Hackathon is more than a tech playground, it’s an opportunity for each individual to test themselves, learn, and break past their own limits. Stay tuned for the next tech journeys at SupremeTech, where even the smallest ideas can spark big changes!

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              Anh Nguyen T.

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                How a Hackathon Changed My Life – A Personal Story from the CEO of SupremeTech

                Written by Binh Nguyen, CEO of SupremeTech, from his own Hackathon journey Hi everyone,Today I’d like to share an experience that truly shaped who I am, not just as a professional, but as a builder. This is the story of how a Hackathon transformed my mindset from being just a developer into becoming a tech builder. Before moving into business analysis and later management, I started out as a Front-end Developer. Back in 2016, I was self-learning HTML, CSS, and React.js. Then in 2017, I had the chance to join a Hackathon that completely changed how I approached product development. It was the turning point that made me realize the difference between being a coder and being a builder. Step 1: Accepting the Challenge The Hackathon was organized by the Da Nang Business Incubator in collaboration with the Embassy of Israel, with support from venture capitalists and incubators from Israel. At that time, the prizes weren’t particularly big. But as someone new to the industry, eager to start a career and even dream of building a startup, I felt I had to join. Honestly, another reason was my competitive nature, I wanted to prove that even though I came from a non-tech background and had only been coding for a year, I could still stand shoulder-to-shoulder with others. Step 2: Preparing, Planning and Strategy For those unfamiliar, a Hackathon is a short, intensive coding competition where individuals or teams create a product in just a few days. You start from an idea, build it, and then present it on the last day - the demo day. The products are evaluated by the judges based on the Hackathon’s criteria. Our theme that year was straightforward: turn a startup idea into a product in just two days. If coding is a sport, then Hackathon is like a championship match. To build an app in such a short time, we had to prepare carefully, especially the methods to build a complete app as fast as possible. Boilerplates, bootstrap, pre-made components, even self-made code generation tools to save time… techniques that now are nothing difficult, but the goal of a Hackathon is always the same: build fast and ship immediately! With everything ready, we headed off to the competition. Step 3: Code, Bug, Hack and Chaos After the opening ceremony, we chose our topic and immediately got to work. Our topic was an app to find venues and make group reservations. Like most projects, the first 50% of the codebase went smoothly. We managed to build it within half a day. But the problems started when we moved into the core features and tricky logic like date pickers, slot reservations, venue data, etc. Ideas kept coming, we kept coding, and bugs showed up just as much. By 9 p.m., we were exhausted, buried in bugs, with no clear way forward, and nothing ready for the demo the next morning. So we decided to stop coding and discuss how to deliver on time. After more than an hour of debate, here’s how we planned the remaining work: Stop implementing backend logic and data crawlers, use front-end mockups to ensure demo flowDeploy on Heroku to save time on server setup and have a live productSpend extra time preparing slides to explain during the demo In the end, the chaos turned into something more organized. The funny part was that I, the front-end guy, had to keep coding, while our back-end guy ended up making the slides. Step 4: Demo – The G Hour After polishing things up until the last minute, we got on stage to demo. This part was quite similar to a sprint review, except that we had to stand on stage and present to a big audience. For everyone at ST now, sprint reviews are done very well already, so nothing more to add here. What surprised us was that the judges, especially the Israeli experts, didn’t pay much attention to the detailed features we had spent so much effort on. Instead, they asked “general” questions like: What is the technology that makes this product better than others?In what situations would users actually want to use this product? Step 5: Reflection – What I Gained We didn’t win for two main reasons: The software was quite complete but didn’t clearly show competitive advantages.Vietnamese users at that time didn’t really have the habit of booking tables/services via apps. Although we lost and felt quite upset at that moment, looking back now, I gained so much more: Confidence in setting up the initial codebase and preparing projects for productionUnderstanding that the value of technology lies in efficiency and competitiveness, not the number of featuresRealizing that users don’t care how much effort we put into building an app, they just want their problem solved in the best wayDelivering code fast and continuously, without waitingPreparation and choosing the right topic are the two keys to winningWith the right mindset, I could work with the best developers without losing confidence, even with less knowledge and experience Lastly: Try It Once—It Might Change You Too Hackathon changed me from being just a self-taught coder into a true tech builder. The mindset I gained in those two days has helped me a lot throughout my career until now. I believe many others will also learn valuable lessons from upcoming quality Hackathons. 100 million VND in prizes are waiting for you at the SupremeTech Hackathon this September 2025. Enjoy!

                21/08/2025

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                Binh Nguyen T.

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                  How a Hackathon Changed My Life – A Personal Story from the CEO of SupremeTech

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                  Binh Nguyen T.

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