import { Story, Meta, html } from '@open-wc/demoing-storybook';

import '../lion-radio.js';

<Meta title="Forms/Radio" parameters={{ component: 'lion-radio' }} />

# Radio

`lion-radio` component is a sub-element to be used in [lion-radio-group](?path=/docs/forms-radio-group--default-story) elements. Its purpose is to provide a way for users to check a **single** option amongst a set of choices.

<Story name="Default">{html`
  <lion-radio-group name="dinos">
    <lion-radio label="allosaurus" .choiceValue=${'allosaurus'}></lion-radio>
    <lion-radio label="brontosaurus" .choiceValue=${'brontosaurus'}></lion-radio>
    <lion-radio label="diplodocus" .choiceValue=${'diplodocus'} checked></lion-radio>
  </lion-radio-group>
`}</Story>

```html
<lion-radio-group name="dinos">
  <lion-radio label="allosaurus" .choiceValue=${'allosaurus'}></lion-radio>
  <lion-radio label="brontosaurus" .choiceValue=${'brontosaurus'}></lion-radio>
  <lion-radio label="diplodocus" .choiceValue=${'diplodocus'} checked></lion-radio>
</lion-radio-group>
```

- Use this component inside a [lion-radio-group](?path=/docs/forms-radio-group--default-story)
- Make sure that it has a name attribute with appended `[]` for multiple choices.

## Features

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

## How to use

### Installation

```sh
npm i --save @lion/radio
```

```js
import '@lion/radio/lion-radio.js';
```