let / const / var — Hoisting, TDZ, Scope Pitfalls in Real Codebases
JavaScript skills for the React Developer (Frontend) — Hong Kong career path. Filter, model, and reason about the real data this role works with every day.
JavaScript skills for the React Developer (Frontend) — Hong Kong
this lesson focuses on the practical JavaScript toolkit a working React Developer (Frontend) — Hong Kong reaches for on the job.
Try the first query
SELECT example, value
FROM javascript_dataset
WHERE priority = '1'
AND career = 'React Developer (Frontend) — Hong Kong';
▸ preview · Sprint-2 will replace this with a live runner
Closures & this — Arrow vs Function, bind/call/apply, Event Handlers
Once this topic clicks, the recommended next step keeps the learning streak going on adjacent skills in the same career path.
continue path →Sprint-1 stub
This is the Sprint-1 stub for ai.careerplane.technology.react-developer-hong-kong.javascript.let-const-var.
The fully-generated topic page (sandbox + quiz + AI hints + interactive
tooling) lands in Sprint-2 at
(per arch/memo.md → D-2026-04-22-13). The
//go:embed all:static directive auto-serves
it on the next container rebuild — no server-code change needed.