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Create immutable data classes with Dart’s const constructors, enforce compile‑time safety, and benchmark memory savings. Follow this step‑by‑step guide to canonicalize objects, avoid side‑effects, and recover from constraint violations.
Performance Measurement Before Optimization The goal is to quantify whether converting a widget to a const constructor actually reduces frame times in a real Flutter 3.x app. The trade‑off lies between the compile‑time guarantees of const and the flexibility of runtime instantiation when widget data is dynamic. Constraints and Uncertainty 1. const can only b
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