Google Maps In ArcGIS JavaScript API

Use Google Maps in ESRI ArcGIS JSAPI Documentation

Click buttons to switch base map between ESRI and Google. Note the "Gray", "Night" and "Random" styles. The "random" will show differently each time clicked.
Drag pegman icon on top left corner to map to see street view(hold mouse for preview).
Check layer on/off to customize base map. Note not all sub layer visible at all scales.

Google Maps Sub Layers(features)