Visual programming languages are built around simple, readable diagrams of nodes and connections: each node represents an action (e.g., set thermostat, play a sound), can be as complex as RxJS components, and is edited via a small code editor that contains just a few lines of JavaScript; the nodesâ anchors form writable streams that push data from one nodeâs output to another nodeâs subscribed input, enabling flexible, customizable flows that remain visible on screen, making it ideal for beginners who can later expand their nodes into more powerful components while still being able to revisit and understand earlier code.






















