Core Concepts

Collections

Array, Map, and Set are reactive in rs-x expressions.

For practical examples (including specific-item monitoring), see the collections guide.

What it means

Collection reads and writes are observed so dependent expressions can react when items change.

Practical value

Collection-heavy models are common. Consistent collection tracking keeps computed values in sync with minimal manual code.

Key points

  • Array/Map/Set mutations can trigger reactive updates.
  • Track collection item access and membership changes.
  • Prefer explicit collection operations for predictable updates.