Abu Hasan Rumi - Blog RSS Feed

@abuhasanrumi/timezone-to-country

Abu Hasan Rumi — Sun, 01 Jul 2001 00:00:00 GMT

A tiny library to get country and continent information by timezone. Lightweight, easy to use, and suitable for both frontend and backend JavaScript environments.

@abuhasanrumi/state-sync

Abu Hasan Rumi — Fri, 01 Jun 2001 00:00:00 GMT

A tiny utility for debouncing, throttling, and dynamic rate-limiting in JavaScript. Designed to be lightweight and dependency-free for frontend and backend use.

@abuhasanrumi/micro-flow

Abu Hasan Rumi — Tue, 01 May 2001 00:00:00 GMT

A micro-library to sync application state across browser tabs/windows. Useful for real-time sync of UI changes like dark mode, auth, or cart items.

WebPeekr

Abu Hasan Rumi — Sun, 01 Apr 2001 00:00:00 GMT

A Chrome extension designed to extract fonts, colors (converted to hex codes), and other key design elements directly from web pages.

RayBim Technologies

Abu Hasan Rumi — Thu, 01 Mar 2001 00:00:00 GMT

A fully responsive multi-page website built with HTML, CSS and BootStrap.

Frontend Development Best Practices: Building Fast and Accessible Web Applications

Abu Hasan Rumi — Sun, 17 Aug 2025 00:00:00 GMT

Frontend Development Best Practices: Building Fast and Accessible Web Applications

As a frontend engineer specializing in React and modern web technologies, I've learned that creating exceptional user experiences requires more than just writing functional code. It demands a deep understanding of performance optimization, accessibility standards, and user-centered design principles.

The Foundation: JavaScript and Modern Frameworks

JavaScript ES6+ and Beyond

Modern JavaScript forms the backbone of efficient web applications. Key concepts I utilize daily include:

Destructuring and Spread Syntax for cleaner code
Async/Await for better promise handling
Modules for maintainable code organization
Arrow Functions and lexical scoping

React Performance Optimization

Working extensively with React applications, I've discovered several optimization techniques:

// Use React.memo for component optimization
const OptimizedComponent = React.memo(({ data }) => {
  return <div>{data.content}</div>;
});

// Implement useCallback for expensive operations
const expensiveOperation = useCallback(() => {
  return heavyCalculation(dependencies);
}, [dependencies]);

Building Shopify Apps: E-commerce Excellence

My experience in Shopify app development has taught me the importance of:

Performance in E-commerce

Code splitting for faster initial loads
Lazy loading for product images and components
API optimization to reduce merchant dashboard load times
Efficient state management for complex app interactions

User Experience Focus

Creating intuitive interfaces that help merchants succeed:

Clear navigation and information architecture
Responsive design for mobile and desktop use
Accessible forms and interactive elements
Performance monitoring and optimization

Accessibility: Building for Everyone

Web accessibility isn't optional—it's essential. Key practices include:

Semantic HTML

<!-- Good: Semantic and accessible -->
<nav aria-label="Main navigation">
  <ul role="list">
    <li><a href="/about">About</a></li>
    <li><a href="/projects">Projects</a></li>
  </ul>
</nav>

<!-- Better: Include proper ARIA labels -->
<button aria-label="Download resume PDF" type="button">Download Resume</button>

Focus Management

Logical tab order for keyboard navigation
Focus indicators for interactive elements
Skip links for main content areas
Screen reader compatibility

Performance Optimization Strategies

Core Web Vitals

Focusing on Google's Core Web Vitals metrics:

Largest Contentful Paint (LCP): Optimizing image loading and critical resources
First Input Delay (FID): Minimizing JavaScript execution time
Cumulative Layout Shift (CLS): Preventing unexpected layout shifts

Modern Tooling

Webpack optimization for efficient bundling
Image optimization using WebP and AVIF formats
CSS-in-JS with styled-components for component-scoped styles
Progressive Web App features for improved user experience

Project Architecture and Scalability

Component-Driven Development

Building reusable, maintainable components:

// Flexible, reusable button component
const Button = ({ variant = 'primary', size = 'medium', children, ...props }) => {
  return (
    <StyledButton variant={variant} size={size} {...props}>
      {children}
    </StyledButton>
  );
};

State Management

Choosing the right state management solution:

React Context for simple global state
Redux Toolkit for complex application state
SWR or React Query for server state management

Continuous Learning and Adaptation

The frontend landscape evolves rapidly. Staying current involves:

Following web standards and browser implementations
Experimenting with new frameworks and tools
Contributing to open source projects
Building personal projects to test new concepts
Engaging with the developer community

Conclusion

Effective frontend development combines technical expertise with user empathy. Whether building Shopify applications, React dashboards, or accessible web experiences, the goal remains constant: creating digital products that users love and businesses depend on.

The key is balancing cutting-edge technology with proven best practices, always keeping performance, accessibility, and user experience at the forefront of development decisions.

Want to discuss frontend development or explore collaboration opportunities? Feel free to reach out through my portfolio contact form.

Software Developer

Abu Hasan Rumi — Mon, 01 Jul 2024 00:00:00 GMT

Designed and implemented critical application features, ensuring scalability and maintainability.
Provided guidance and support to junior team members, fostering a collaborative team environment.
Collaborated with product, design, and QA teams to align on project requirements and deliverables.

Junior Software Developer

Abu Hasan Rumi — Mon, 01 Jan 2024 00:00:00 GMT

Worked on the dashboard part of an app for Shopify websites.
Developed core features and made it easy to add new ones in a scalable and reusable way.
Collaborated with different teams to ensure smooth integration and performance.
Reviewed code and helped junior developers, creating a supportive team environment.
Improved the user experience and overall functionality of the app.

JavaScript Developer

Abu Hasan Rumi — Mon, 01 May 2023 00:00:00 GMT

Contributed to the enhancement and maintenance of Shopify-based non-embedded apps.
Developed new features to expand app capabilities.
Resolved issues to ensure smooth operation and performance.
Improved existing functionalities for better user experience.
Ensured optimal performance and reliability of the apps.

Accessible Clickable Cards

Abu Hasan Rumi — Wed, 21 Apr 2021 00:00:00 GMT

Codepen Demo

Card layout where the card itself isn't an anchor link, but the whole card is clickable (with a :before pseudo element on the main <a>). Links inside of the card are still clickable.

CSS

.grid__item {
  &:hover,
  &:focus-within {
    background-color: #eee;
  }

  a {
    position: relative;
    z-index: 1;
  }

  h2 {
    a {
      position: static;

      &:hover,
      &:focus {
        color: blue;
      }

      &:before {
        content: '';
        display: block;
        position: absolute;
        z-index: 0;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        transition: background-color 0.1s ease-out;
        background-color: transparent;
      }
    }
  }
}

Integrating Algolia Search with WordPress Multisite

Abu Hasan Rumi — Fri, 27 Mar 2020 00:00:00 GMT

Building a custom multisite compatible WordPress plugin to build global search with Algolia

Expensify - React Native

Abu Hasan Rumi — Thu, 01 Feb 2001 00:00:00 GMT

A modern expense tracking application built with Expo and React Native that helps users manage their finances efficiently. The app features a clean, dark-themed UI with smooth animations and comprehensive financial management capabilities.

FlexiForm

Abu Hasan Rumi — Mon, 01 Jan 2001 00:00:00 GMT

A is a modern, customizable form builder built with Next.js, Tailwind CSS, and Prisma. It features drag-and-drop form creation, real-time previews, dark mode, and secure user authentication — making it easy to create, manage, and share forms effortlessly.