How GoJS-style node data ownership resolves React/Vue/Angular prop confusion

A Grafloria engineering blog post addresses two of the most-viewed custom-node questions on Stack Overflow, which together have accumulated over 34,000 views. The core insight is that a node has exactly one data home — the data dictionary stored on the node itself within the diagram's model — not inside a component's props or a separate state store. Frameworks like React, Vue, and Angular each expose this same node data through their own syntax, but the underlying pattern is identical across all three. Writing new data after node creation means calling a method directly on the node object, making the change undoable, observable, and serializable without cloning arrays or syncing parallel stores. Grafloria is an MIT-licensed diagram engine supporting React, Angular, Vue, and plain JavaScript.