Explore TargetJS on GitHub . Introduction Most modern frameworks model the UI as a function of state: When state changes from A → B, the UI immediately jumps to B. But user experiences expect a smooth transition something like: A → transition → B. Coordinating that transition often feels like a fight with the framework. Moreover, a simple sequence like "Click → Animate → Fetch → Transition to new result → highlight one item" is handled by multiple concepts or APIs such as event handling, animation library, fetch logic, and timing mechanism. This often also requires extra glue code to piece all the parts together. Lastly, the code structure does not naturally follow the UI sequence. This is an overlooked issue in software architecture, as the structure often depends more on the developers than on a standardized model provided by the framework. Introducing TargetJS: State as a Destination and Predictable Execution Flow TargetJS takes a different approach.…