A progressive frontend engineering case study tracking the development of an asynchronous data system from a simple API fetch engine into a high-performance, fault-tolerant analytics application.
- 🚀 Milestone 3 (Enterprise Optimized Production Engine): Launch Live Dashboard v3
- 📊 Milestone 2 (Data Visualization Dashboard): Launch Analytics v2
- 📄 Milestone 1 (Original Standard Core Fetch): Launch Core App v1
API-Integration/
├── index.html # Milestone 1: Original foundational DOM structure & asynchronous fetch loops
├── style.css # Foundational component presentation styling
├── script.js # Core endpoint data extraction logic
│
├── v2-dashboard/ # Milestone 2: Analytical Data Dashboard
│ ├── index.html # Control stations, filtering dropdown nodes, and Chart.js canvas containers
│ ├── style.css # CSS Grid multi-column matrices & responsive media query intercepts
│ ├── script.js # Array aggregation metrics counters & Chart.js renderer configurations
│ └── README.md # Detailed milestone documentation
│
└── v3-optimized/ # Milestone 3: Production-Grade Fault-Tolerant Engine
├── index.html # Layout with hidden error boundaries and pulse placeholder skeleton states
├── style.css # Obsidian dark mode tokens, light mode inverses, and animation keyframes
├── script.js # Enterprise state caching boundaries, 300ms input debouncing, and localStorage
└── README.md # Detailed optimization and state documentation