References — fw-03 Reactivity: mini-vue and mini-signals

Primary sources first. Read the real implementation after you have written yours, never before.

Signals — the current convergence

• TC39 Signals proposal — the standardisation effort. The README is an unusually good explanation of the design space and the trade-offs between implementations.
• Preact Signals — small, readable, production
• Solid reactivity source — createSignal, createEffect, createMemo; the reference implementation of fine-grained reactivity
• Angular signals — the same primitive in a different framework, worth comparing

Vue's reactivity

• @vue/reactivity source — reactive.ts, effect.ts, ref.ts, computed.ts. Read effect.ts first: dependency tracking is the whole idea.
• Vue docs — Reactivity in depth — with diagrams
• Vue 3 reactivity from scratch — Vue's own comparison to signals

Design essays worth reading

• Ryan Carniato — A Hands-on Introduction to Fine-Grained Reactivity
• Rich Harris — Rethinking reactivity — the compiler-based alternative (fw-06)
• Glitch-free propagation — why naive push-based reactivity produces inconsistent intermediate states, and what it costs to avoid

Related modules

• fw-02 — mini-react core — the VDOM model this one competes with
• fw-05 — Vue renderer — reactivity plus a renderer
• fw-06 — Compilers — the third answer: do it at build time
• fe-13 — Reactivity models compared (planned) — the architectural comparison

When a claim here proves stale, record it in PROGRESS.md section 7.