JavaScript

Proficiency Level: Intermediate

JavaScript is my primary language for web development, with experience spanning frontend frameworks, backend development, and full-stack applications. I'm proficient in modern ES6+ features and popular frameworks.

Core JavaScript Skills

Modern JavaScript (ES6+):

  • Arrow functions and template literals
  • Destructuring assignment and spread operator
  • Promises, async/await, and asynchronous programming
  • Modules (import/export) and module bundling
  • Classes and object-oriented programming
  • Map, Set, and other modern data structures

DOM Manipulation:

  • Event handling and event delegation
  • Dynamic content creation and modification
  • Form validation and user interaction
  • Browser APIs (localStorage, sessionStorage, fetch)
  • Responsive design with JavaScript

Frontend Development

Vue.js Ecosystem:

  • Vue 3 Composition API and Options API
  • Component-based architecture and reusable components
  • State management with Pinia/Vuex
  • Vue Router for single-page applications
  • Nuxt.js for server-side rendering and static generation

Modern Development Tools:

  • Vite for fast development and building
  • ESLint and Prettier for code quality
  • Webpack for module bundling
  • Babel for JavaScript transpilation
  • npm/yarn for package management

Backend Development

Node.js:

  • Express.js for RESTful API development
  • Middleware implementation and custom routing
  • Authentication and authorization (JWT, sessions)
  • Database integration (MongoDB, PostgreSQL)
  • File handling and stream processing

API Development:

  • RESTful API design principles
  • JSON data handling and validation
  • Error handling and status codes
  • API documentation with tools like Swagger
  • Rate limiting and security best practices

Notable JavaScript Projects

Personal Portfolio Website

  • Built with Nuxt.js and Vue 3
  • Responsive design with Tailwind CSS
  • Content management with Nuxt Content
  • Deployed on Cloudflare Pages with CI/CD
  • SEO optimization and performance tuning

Insurance Data Dashboard

  • Vue.js frontend with real-time data visualization
  • Chart.js integration for interactive charts
  • RESTful API consumption with axios
  • User authentication and role-based access
  • Responsive design for mobile and desktop

Actuarial Calculation API

  • Node.js backend with Express framework
  • Complex mathematical calculations for insurance
  • Database integration for data persistence
  • Input validation and error handling
  • API testing with Jest and Supertest

Automation Scripts

  • Web scraping with Puppeteer
  • Data processing and transformation
  • File system operations and CSV handling
  • Email automation and notifications
  • Scheduled tasks with node-cron

Frontend Technologies

CSS and Styling:

  • Tailwind CSS for utility-first styling
  • CSS Grid and Flexbox for layouts
  • CSS animations and transitions
  • Responsive design principles
  • Component styling with scoped CSS

Build Tools and Workflow:

  • Git version control and GitHub workflows
  • Continuous integration and deployment
  • Code splitting and lazy loading
  • Performance optimization techniques
  • Browser developer tools proficiency

Testing and Quality Assurance

Testing Frameworks:

  • Jest for unit testing
  • Vue Test Utils for component testing
  • Cypress for end-to-end testing
  • API testing with Postman and Newman
  • Code coverage analysis

Code Quality:

  • ESLint configuration and custom rules
  • Prettier for consistent code formatting
  • Husky for git hooks and pre-commit checks
  • Code review processes and best practices
  • Documentation with JSDoc

Database Integration

Database Technologies:

  • MongoDB with Mongoose ODM
  • PostgreSQL with Sequelize ORM
  • SQLite for development and testing
  • Redis for caching and session storage
  • Database migration and seeding

Data Handling:

  • JSON data manipulation and validation
  • CSV parsing and generation
  • Real-time data with WebSockets
  • Pagination and data filtering
  • Data visualization with Chart.js and D3.js

Deployment and DevOps

Hosting Platforms:

  • Vercel and Netlify for frontend deployment
  • Heroku and Railway for backend services
  • Cloudflare Pages for static sites
  • Docker containerization basics
  • Environment configuration and secrets management

Performance Optimization:

  • Code splitting and lazy loading
  • Image optimization and compression
  • Caching strategies (browser, CDN, server)
  • Bundle analysis and optimization
  • Core Web Vitals monitoring

Learning and Development

Continuous Learning:

  • Following JavaScript community trends and updates
  • Exploring new frameworks and libraries
  • Contributing to open-source projects
  • Attending web development conferences and meetups
  • Building side projects to experiment with new technologies

Knowledge Sharing:

  • Writing technical blog posts about JavaScript
  • Mentoring junior developers
  • Code reviews and pair programming
  • Creating internal documentation and guides
  • Presenting at team meetings and workshops

Future Goals

I'm continuously expanding my JavaScript expertise by:

  • Exploring TypeScript for better type safety
  • Learning advanced React concepts and patterns
  • Diving deeper into Node.js performance optimization
  • Experimenting with serverless functions and edge computing
  • Studying progressive web app (PWA) development

JavaScript enables me to create dynamic, interactive web applications that provide excellent user experiences while maintaining clean, maintainable code that scales with business requirements.