## Alert
Displays important alert messages.
### Basic usage
Alert components are non-overlay elements in the page that does not disappear automatically.
::: demo Alert provides 4 types of themes defined by `type`, whose default value is `info`.
```html
```
:::
### Customizable close button
Customize the close button as texts or other symbols.
::: demo Alert allows you to configure if it's closable. The close button text and closing callbacks are also customizable. `closable` attribute decides if the component can be closed or not. It accepts `boolean`, and the default is `true`. You can set `close-text` attribute to replace the default cross symbol as the close button. Be careful that `close-text` must be a string. `close` event fires when the component is closed.
```html
```
:::
### With icon
Displaying an icon improves readability.
::: demo Setting the `show-icon` attribute displays an icon that corresponds with the current Alert type.
```html
```
:::
### With description
Description includes a message with more detailed information.
::: demo Besides the required `title` attribute, you can add a `description` attribute to help you describe the alert with more details. Description can only store text string, and it will word wrap automatically.
```html
```
:::
### With icon and description
::: demo At last, this is an example with both icon and description.
```html
```
:::
### Attributes
| Attribute | Description | Type | Accepted Values | Default |
|---------- |-------------- |---------- |-------------------------------- |-------- |
| **title** | title **REQUIRED** | string | — | — |
| type | component type | string | success/warning/info/error | info |
| description | supportive text | string | — | — |
| closable | if closable or not | boolean | — | true |
| close-text | customized close button text | string | — | — |
| show-icon | if a type icon is displayed | boolean | — | false |
### Events
| Event Name | Description | Parameters |
|---------- |-------- |---------- |
| close | fires when alert is closed | — |