Frontend

Frontend is an area I work in but haven't mapped out here yet. This note is the canonical page for the frontend tag — a shelf to fill with frameworks, languages, and patterns I use day-to-day.

• React — my default UI library. See the React topic page for routing, state, UI kits, tables, and i18n.
• TypeScript — the language I pair with React; Zod at runtime boundaries.
• Next.js — framework layer on top of React.
• npm, pnpm, and Yarn — how dependencies get installed.

Comparisons

• /comparisons — index of all Ultimate Comparison notes (comparison tag).
• Ultimate comparison: Redux side-effect middleware — example of the Ultimate Comparison format (criteria × options, snapshot metrics).
• Ultimate comparison: observability tools — stub for a future matrix.
• Ultimate comparison: E2E browser tools — stub for a future matrix.

Testing (drafts)

• Testing strategy — pyramid, trophy, patterns vs anti-patterns.
• React testing — Vitest/Jest, RTL, Playwright/Cypress, narrow vs broad integration, E2E.
• Non-functional testing — performance, a11y, security, i18n, visual regression.