## Switch

Switch is used for switching between two opposing states.

### Basic usage
:::demo Bind `v-model` to a `Boolean` typed variable. The `active-color` and `inactive-color` attribute decides the background color in two states.

```html
<el-switch v-model="value1">
</el-switch>
<el-switch
  v-model="value2"
  active-color="#13ce66"
  inactive-color="#ff4949">
</el-switch>

<script>
  export default {
    data() {
      return {
        value1: true,
        value2: true
      }
    }
  };
</script>
```
:::

### Text description
:::demo You can add `active-text` and `inactive-text` attribute to show texts.

```html
<el-switch
  v-model="value1"
  active-text="Pay by month"
  inactive-text="Pay by year">
</el-switch>
<el-switch
  style="display: block"
  v-model="value2"
  active-color="#13ce66"
  inactive-color="#ff4949"
  active-text="Pay by month"
  inactive-text="Pay by year">
</el-switch>

<script>
  export default {
    data() {
      return {
        value1: true,
        value2: true
      }
    }
  };
</script>
```
:::

### Extended value types

:::demo You can set `active-value` and `inactive-value` attributes. They both receive a `Boolean`, `String` or `Number` typed value.

```html
<el-tooltip :content="'Switch value: ' + value" placement="top">
  <el-switch
    v-model="value"
    active-color="#13ce66"
    inactive-color="#ff4949"
    active-value="100"
    inactive-value="0">
  </el-switch>
</el-tooltip>

<script>
  export default {
    data() {
      return {
        value: '100'
      }
    }
  };
</script>
```

:::

### Disabled

:::demo Adding the `disabled` attribute disables Switch.

```html
<el-switch
  v-model="value1"
  disabled>
</el-switch>
<el-switch
  v-model="value2"
  disabled>
</el-switch>

<script>
  export default {
    data() {
      return {
        value1: true,
        value2: false
      }
    }
  };
</script>
```
:::

### Loading

:::demo Setting the `loading` attribute to `true` indicates a loading state on the Switch.

```html
<el-switch
  v-model="value1"
  loading>
</el-switch>
<el-switch
  v-model="value2"
  loading>
</el-switch>
<script>
  export default {
    data() {
      return {
        value1: true,
        value2: false
      }
    }
  };
</script>
```
:::

### Attributes

| Attribute      | Description          | Type      | Accepted Values       | Default |
|-----| ----| ----| ----|---- |
| value / v-model | binding value, it should be equivalent to either `active-value` or `inactive-value`, by default it's `boolean` type | boolean / string / number | — | — |
| disabled | whether Switch is disabled | boolean | — | false |
| loading  | whether Switch is in loading state | boolean | — | false |
| width | width of Switch | number | — | 40 |
| active-icon-class | class name of the icon displayed when in `on` state, overrides `active-text` | string | — | — |
| inactive-icon-class |class name of the icon displayed when in `off` state, overrides `inactive-text`| string | — | — |
| active-text | text displayed when in `on` state | string | — | — |
| inactive-text | text displayed when in `off` state | string | — | — |
| active-value  | switch value when in `on` state | boolean / string / number | — | true |
| inactive-value  | switch value when in `off` state | boolean / string / number | — | false |
| active-color | background color when in `on` state | string | — | #409EFF |
| inactive-color | background color when in `off` state | string | — | #C0CCDA |
| name           | input name of Switch | string | — | — |
| validate-event | whether to trigger form validation | boolean | - | true |

### Events

| Event Name | Description | Parameters |
| ---- | ----| ---- |
| change | triggers when value changes | value after changing |

### Methods
| Method | Description | Parameters |
| ------|--------|------- |
| focus | focus the Switch component | — |