[//]: # 'AUTO INSERT HEADER PREPUBLISH'

# ChoiceInputMixin

```js script
export default {
  title: 'Forms/System/Choice',
};
```

`lion-choice-input` mixin is a fundamental building block of form controls which return a checked-state. It is used in:

- [lion-checkbox](../checkbox/)
- [lion-option](../option/)
- [lion-radio](../radio/)
- [lion-switch](../switch/)

## Features

- Get or set the value of the choice - `choiceValue()`
- Get or set the modelValue (value and checked-state) of the choice - `.modelValue`
- Pre-select an option by setting the `checked` boolean attribute