v-model prop as they do not maintain their own state.
See documentation.
{{ code3.radios || "null" }}
Radios can be colored by using any of the builtin colors and
contextual names using the color prop.
Switches can be colored by using any of the builtin colors and
contextual names using the color prop.
{{ code2.selected }}
Selection controls' labels can be defined in
label slot - that will allow to use HTML content