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PARTH PATEL

Cybersecurity & Security Operations Specialist

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Resources

Front-end Development

Guide

Front-end Development Checklist

A comprehensive checklist for modern front-end development projects covering best practices in HTML, CSS, and JavaScript.

Complete Front-end Development Checklist

HTML Best Practices

Use semantic HTML5 elements (header, nav, main, article, section, footer)
Include proper DOCTYPE declaration
Set lang attribute on html element
Use descriptive alt text for all images
Implement proper heading hierarchy (h1 → h2 → h3)
Add meta tags (description, keywords, viewport)
Use form labels and proper input types
Include ARIA attributes where needed
Validate HTML markup
Ensure proper document structure

CSS Best Practices

Use CSS variables for colors and spacing
Implement mobile-first responsive design
Use Flexbox or Grid for layouts
Optimize CSS (minify, remove unused styles)
Use consistent naming convention (BEM, OOCSS, etc.)
Ensure sufficient color contrast (WCAG AA)
Test across different browsers
Use CSS preprocessors if needed (Sass, Less)
Implement dark mode support
Optimize font loading (font-display: swap)

JavaScript Best Practices

Use modern ES6+ syntax
Implement error handling (try-catch, error boundaries)
Minify and bundle JavaScript files
Use debouncing/throttling for events
Implement lazy loading for images and code
Optimize DOM manipulation
Use async/await for asynchronous operations
Implement proper state management
Add loading states and user feedback
Test JavaScript functionality

Performance Optimization

Optimize images (compress, use WebP format)
Implement code splitting
Use CDN for static assets
Enable browser caching
Minimize HTTP requests
Use preload and prefetch for critical resources
Optimize critical rendering path
Monitor Core Web Vitals
Test page load speed (Lighthouse)
Implement service workers for offline support

Accessibility

Ensure keyboard navigation works
Add focus indicators
Use proper ARIA labels
Test with screen readers
Ensure color contrast meets WCAG standards
Provide text alternatives for media
Use semantic HTML elements
Test with accessibility tools (WAVE, axe)
Ensure forms are accessible
Support reduced motion preferences

SEO Optimization

Include meta title and description
Use proper heading structure
Optimize images with alt text
Create XML sitemap
Implement structured data (JSON-LD)
Ensure mobile-friendly design
Optimize page load speed
Use descriptive URLs
Implement Open Graph tags
Create robots.txt file

Testing & Quality Assurance

Test on multiple browsers (Chrome, Firefox, Safari, Edge)
Test on different devices (mobile, tablet, desktop)
Validate HTML and CSS
Test all forms and interactions
Check for broken links
Test error handling
Perform usability testing
Test with slow network connections
Check console for errors
Get peer review

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