QuickCart E-Commerce
Next-Gen Angular E-Commerce Architecture
Angular Signals Standalone Components Tailwind CSS Angular Router WCAG 2.1
The Challenge
High-scale e-commerce platforms often suffer from "black box" legacy code, bloated UI dependencies, and fragile state sync that causes cart errors. The goal was to demonstrate an approach that keeps Core Web Vitals strong and interactions smooth without heavy frameworks or unnecessary state complexity.
The Solution
I engineered "QuickCart" using a clean-slate "Smart Shell" architecture. Angular Signals provide stable global state without the overhead of heavy state libraries in this scope, and a custom Tailwind design system eliminates layout thrashing for a consistently smooth user experience.
Demonstrating a "Zero-Boilerplate" philosophy, I utilized the "Smart Shell, Dumb Views" pattern with Standalone Components. The core innovation is the Signal-based reactivity system that syncs cart state globally without RxJS subscription overhead, combined with explicitly configured OnPush change detection that puts the rendering engine to "sleep" until specific updates occur. I also implemented a custom "Backdrop" mobile menu using purely CSS transitions and ARIA roles for accessibility, ensuring a 60fps experience on low-end devices.
Project Links
Performance: FCP dropped from 2.4s to 0.8s (Instant Load) Efficiency: Removed 150kb of unused JS via Tree-Shaking Stability: Zero "jank" during complex mobile menu interactions