Reflect used a proprietary visual IDE (Integrated Development Environment) that allowed designers to draw UI elements, timeline-based animations, and state machines visually. When the project was complete, the software would compile everything down to vanilla JavaScript, HTML5, and CSS. The calling card of that compilation process was the signature:
Since most of your logic is just reactive variables and functions, testing is trivial. You don’t need to mount a component and simulate a click to test a derived state. You simply import the signal, update it, and assert the computed value. made with reflect 4