# LegendLayer.detach

## Summary
LegendLayer.detach removes legend DOM nodes and unsubscribes from bound source visual-change signals. OverlaySystem calls this automatically during removal/clear operations.

## Syntax
```ts
LegendLayer.detach(): void
layer.detach();
```

## Parameters
This method does not take parameters.

## Returns
`void` - No return value.

## Type Details
```ts
// No additional descriptor expansion is required for this signature.
```

## Example
```js
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const overlay = wgpu.createOverlay.system();
const legend = wgpu.createOverlay.legend({
    id: "legend-main",
    source: { scaleTransform: { mode: "linear", domainMin: 0, domainMax: 1 }, colormap: "turbo" }
});
overlay.addLayer(legend);
overlay.removeLayer("legend-main"); // detach called internally
```

## See Also
- [LegendLayer.attach](./wasmgpu-world-legendlayer-attach.md)
- [OverlaySystem.removeLayer](./wasmgpu-world-overlaysystem-removelayer.md)
- [OverlaySystem.clearLayers](./wasmgpu-world-overlaysystem-clearlayers.md)