Angular Signals Best Practices for Production: Key Rules Developers Should Follow

A developer has outlined a set of production-grade rules for working with Angular Signals, emphasizing that every signal write must produce a new value rather than mutating existing references. The guidelines stress keeping computed() functions as pure, synchronous derivations free from side effects like HTTP calls or localStorage access. For side-effecting logic such as analytics, the author recommends using effect() sparingly and with untracked() to avoid unintended dependency loops. The post also advises against syncing signals via effect() when linkedSignal() or computed() can handle derived state more cleanly. Finally, developers are encouraged to replace template method calls with computed() properties to prevent unnecessary recalculations on every change detection cycle.