# CheckBox

## Code demo

<r-checkbox></r-checkbox>

```xml
 <r-checkbox ></r-checkbox>
```

## Attribute

### `checked`

<r-checkbox checked="true"></r-checkbox>
<r-checkbox checked="false"></r-checkbox>

```xml
 <r-checkbox checked="true"></r-checkbox>
 <r-checkbox checked="false"></r-checkbox>
```

### `disabled`

<r-checkbox checked="true" disabled></r-checkbox>
<r-checkbox checked="false" disabled></r-checkbox>

```xml
 <r-checkbox checked="true" disabled></r-checkbox>
 <r-checkbox checked="false" disabled></r-checkbox>
```

## `event`

Common callback events.

### onchange

<r-checkbox onchange="console.log(this.checked)"></r-checkbox>
<r-checkbox onchange="console.log(this.checked)"></r-checkbox>

```xml
 <r-checkbox onchange="console.log(this.checked)"></r-checkbox>
 <r-checkbox onchange="console.log(this.checked)"></r-checkbox>
```