JavaScript Job Readiness

Resume snapshot

Skills: JS event loop + microtask/macrotask, closures + lexical scope, prototypes, advanced TypeScript (generics, mapped/conditional types), Vite + ESLint + Prettier + Vitest + Playwright, npm + monorepos, security (XSS, CSRF, prototype pollution). Projects: 'Open-source TS library with X downloads/week.' 'Contributed a generic type that solved Y in Z OSS project.' 'Blog: how I debugged a microtask starvation bug.'

Interview questions

'What's the output? <classic event-loop puzzle>' 'Why does `[1, 10, 2].sort()` return `[1, 10, 2]`?' 'What's a prototype chain? Walk me through one.' 'Write `Promise.all` from scratch.' 'How does React's setState batch updates?' 'Implement debounce / throttle.'

Portfolio that gets interviews

Two in 30 days.

1. 1

   Publish a tiny TS library to npm (debounce / cache / retry helpers).

2. 2

   Write a blog: 'event loop in production' with a real bug story.

3. 3

   Contribute a substantive PR to a major OSS JS project (Vite, Prettier, ESLint, TanStack).

4. 4

   Record a 5-min Loom walking through your library's generic types.

Common mistakes

Saying 'I use React' without being able to explain reconciliation. Calling yourself senior without owning a non-trivial library / OSS contribution. Skipping TypeScript depth, generics + utility types are senior table stakes in 2026.