Menu
Improve code performance without changing behavior. Use when code fails latency/throughput requirements. Covers profiling, caching, and algorithmic optimization.
Based on SOC occupation classification
| name | optimizing-code |
| description | Improve code performance without changing behavior. Use when code fails latency/throughput requirements. Covers profiling, caching, and algorithmic optimization. |
When optimizing, you improve performance without changing behavior. Always measure before and after.
// Memoization
const cache = new Map<string, Result>();
function expensiveCalculation(input: string): Result {
if (cache.has(input)) {
return cache.get(input)!;
}
const result = /* expensive work */;
cache.set(input, result);
return result;
}
# Node.js
node --prof app.js
node --prof-process isolate-*.log
# Python
python -m cProfile -s cumtime script.py
# Go
go test -bench=. -cpuprofile=cpu.prof
go tool pprof cpu.prof
Biome 2.x linting and formatting patterns. Use when configuring code quality tools, setting up linting rules, formatting code, or integrating with CI/CD. Covers migration from ESLint/Prettier.
Hono 4.x web framework patterns. Use when building APIs, middleware, routing, or server-side applications. Covers multi-runtime support (Node, Bun, Cloudflare Workers), validation, CORS, and error handling.
Radix UI primitive patterns. Use when building accessible, unstyled UI components like dialogs, dropdowns, tooltips, tabs, and selects. Covers Tailwind styling, keyboard navigation, animations, and portal management.
React development patterns. Use when building React components, managing state, creating custom hooks, or optimizing React applications. Covers React 19 features, TypeScript integration, and composition patterns.
Tailwind CSS 4.x utility-first styling patterns. Use when building UI components, creating responsive layouts, implementing design systems, or customizing themes. Covers CSS-first configuration, @theme directive, and component patterns.
Vite 7.x build tool patterns. Use when configuring build setup, development server, environment variables, asset handling, or optimizing production builds for React applications.