Counter

View source on GitHub ↗

The smallest possible LLui app — the canonical "hello world" of The Elm Architecture. A single number you can increment, decrement, and reset.

What it demonstrates

• The full component({ init, update, view }) shape with a discriminated Msg union.
• Reading reactive state with state.at('count') and transforming it with .map(...).
• Wiring DOM events back into the loop with onClick handlers that send messages.
• show(...) conditional mounting — the Reset button only appears once the count is above zero.

UI

Three buttons (+, −, Reset) around a live count. Reset is hidden while the count is 0.

Running locally

pnpm install
pnpm --filter @llui/example-counter dev