Is it possible to have a single layer visible on the map in this [ESRI tutorial](https://developers.arcgis.com/javascript/3/jssamples/widget_layerlist_basic.html) LayerList widget ?

Each time you click on a layer, the previous one should deactivate. So you always have only one layer on the map.

Michelle

[![enter image description here](https://i.stack.imgur.com/MzKrs.jpg)](https://i.stack.imgur.com/MzKrs.jpg)