Projects

STATUS · Live, Phase 2 Complete · accounting/finance/web-development

Depreciation Calculator

Professional web-based depreciation calculator supporting multiple accounting methods.

Tech Stack: HTML5, CSS3, Vanilla JavaScript, GitHub Pages

Features:

• Straight-Line depreciation method
• Declining Balance method (200% & 150%)
• Responsive design
• Comprehensive input validation
• Educational explanations of each method

What I learned:

• Complex form validation and error handling
• Professional documentation practices
• Git workflows and GitHub Pages deployment
• Solving real accounting problems with code

Challenges overcome:

1. JavaScript number precision: custom rounding to ensure 2-decimal accuracy for financial calculations
2. Edge case handling: declining balance method must stop at salvage value, requiring conditional logic
3. User experience: balanced comprehensive validation with helpful, non-intrusive error messages

Timeline: January 2026 (2 weeks — Phase 1 & 2)

View Live · View Code · Read Write-up

Next phase: adding Chart.js visualizations to show book value trends and depreciation patterns graphically.