9 scroll to top

[tomek-i]

closes #9

[codiumai-pr-agent-free]

PR Reviewer Guide 🔍

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Key issues to review Accessibility Concern The ScrollToTopButton lacks proper accessibility attributes, such as aria-label, which may make it difficult for screen reader users to understand its purpose. Performance Optimization The scroll event listener is not throttled or debounced, which might lead to performance issues on frequent scroll events.

[codiumai-pr-agent-free]

PR Code Suggestions ✨

Category	Suggestion	Score
Performance	✅ Optimize scroll event handling by implementing debounce to improve performance Consider using a debounce or throttle function to limit the frequency of scroll event handling, which can improve performance, especially on mobile devices. src/components/hooks/useScrollVisibility.ts [17-20] -window.addEventListener('scroll', handleScroll); +const debouncedHandleScroll = debounce(handleScroll, 100); +window.addEventListener('scroll', debouncedHandleScroll); return () => { - window.removeEventListener('scroll', handleScroll); + window.removeEventListener('scroll', debouncedHandleScroll); }; [Suggestion has been applied] Suggestion importance[1-10]: 9 Why: Debouncing the scroll event handler is a significant improvement for performance, especially on devices with limited resources. This suggestion addresses a potential performance bottleneck effectively.	9
Accessibility	✅ Improve accessibility of the scroll-to-top button by adding appropriate ARIA attributes Consider using a more semantic HTML element for the scroll-to-top button, such as instead of . This improves accessibility and keyboard navigation. src/components/ScrollToTop/ScrollToTopButton.tsx [13-20] <button onClick={handleScrollToTop} + aria-label="Scroll to top" className={`fixed bottom-5 right-5 p-2.5 text-lg cursor-pointer z-50 bg-blue-500 text-white rounded transition-opacity duration-300 ${ isVisible ? 'opacity-100' : 'opacity-0 pointer-events-none' }`} > - Top + <span aria-hidden="true">Top</span> </button> [Suggestion has been applied] Suggestion importance[1-10]: 8 Why: The suggestion correctly adds ARIA attributes to improve accessibility, which is important for users relying on assistive technologies. The existing code already uses a <button> element, so the suggestion enhances it further by adding an aria-label and wrapping the text in a <span> with aria-hidden="true".	8
Maintainability	Improve code readability by extracting complex class names into a separate constant Consider extracting the button's class names into a separate constant or using a CSS-in-JS solution to improve readability and maintainability. src/components/ScrollToTop/ScrollToTopButton.tsx [15-17] -className={`fixed bottom-5 right-5 p-2.5 text-lg cursor-pointer z-50 bg-blue-500 text-white rounded transition-opacity duration-300 ${ - isVisible ? 'opacity-100' : 'opacity-0 pointer-events-none' -}`} +const buttonClasses = ` + fixed bottom-5 right-5 p-2.5 text-lg cursor-pointer z-50 + bg-blue-500 text-white rounded transition-opacity duration-300 + ${isVisible ? 'opacity-100' : 'opacity-0 pointer-events-none'} +`; +// In the JSX: +className={buttonClasses} + Apply this suggestion Suggestion importance[1-10]: 7 Why: Extracting complex class names into a constant improves readability and maintainability, making the JSX cleaner and easier to understand. This is a good practice for managing styles in a more organized manner.	7