element-plus/website/docs/en-US/notification.md
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## Notification
Displays a global notification message at a corner of the page.
### Basic usage
:::demo Element Plus has registered the `$notify` method and it receives an object as its parameter. In the simplest case, you can set the `title` field and the` message` field for the title and body of the notification. By default, the notification automatically closes after 4500ms, but by setting `duration` you can control its duration. Specifically, if set to `0`, it will not close automatically. Note that `duration` receives a `Number` in milliseconds.
```html
<template>
<el-button plain @click="open1"> Closes automatically </el-button>
<el-button plain @click="open2"> Won't close automatically </el-button>
</template>
<script>
import { h } from 'vue'
export default {
methods: {
open1() {
this.$notify({
title: 'Title',
message: h('i', { style: 'color: teal' }, 'This is a reminder'),
})
},
open2() {
this.$notify({
title: 'Prompt',
message: 'This is a message that does not automatically close',
duration: 0,
})
},
},
}
</script>
<!--
<setup>
import { defineComponent, h } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open1 = () => {
ElNotification({
title: 'Title',
message: h('i', { style: 'color: teal' }, 'This is a reminder')
});
};
const open2 = () => {
ElNotification({
title: 'Prompt',
message: 'This is a message that does not automatically close',
duration: 0
});
};
return {
open1,
open2,
};
},
});
</setup>
-->
```
:::
### With types
We provide four types: success, warning, info and error.
:::demo Element Plus provides four notification types: `success`, `warning`, `info` and `error`. They are set by the `type` field, and other values will be ignored. We also registered methods for these types that can be invoked directly like `open3` and `open4` without passing a `type` field.
```html
<template>
<el-button plain @click="open1"> Success </el-button>
<el-button plain @click="open2"> Warning </el-button>
<el-button plain @click="open3"> Info </el-button>
<el-button plain @click="open4"> Error </el-button>
</template>
<script>
export default {
methods: {
open1() {
this.$notify({
title: 'Success',
message: 'This is a success message',
type: 'success',
})
},
open2() {
this.$notify({
title: 'Warning',
message: 'This is a warning message',
type: 'warning',
})
},
open3() {
this.$notify.info({
title: 'Info',
message: 'This is an info message',
})
},
open4() {
this.$notify.error({
title: 'Error',
message: 'This is an error message',
})
},
},
}
</script>
<!--
<setup>
import { defineComponent } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open1 = () => {
ElNotification({
title: 'Success',
message: 'This is a success message',
type: 'success',
});
};
const open2 = () => {
ElNotification({
title: 'Warning',
message: 'This is a warning message',
type: 'warning',
});
};
const open3 = () => {
ElNotification({
title: 'Info',
message: 'This is an info message',
});
};
const open4 = () => {
ElNotification({
title: 'Error',
message: 'This is an error message',
});
};
return {
open1,
open2,
open3,
open4,
};
},
});
</setup>
-->
```
:::
### Custom position
Notification can emerge from any corner you like.
:::demo The `position` attribute defines which corner Notification slides in. It can be `top-right`, `top-left`, `bottom-right` or `bottom-left`. Defaults to `top-right`.
```html
<template>
<el-button plain @click="open1"> Top Right </el-button>
<el-button plain @click="open2"> Bottom Right </el-button>
<el-button plain @click="open3"> Bottom Left </el-button>
<el-button plain @click="open4"> Top Left </el-button>
</template>
<script>
export default {
methods: {
open1() {
this.$notify({
title: 'Custom Position',
message: "I'm at the top right corner",
})
},
open2() {
this.$notify({
title: 'Custom Position',
message: "I'm at the bottom right corner",
position: 'bottom-right',
})
},
open3() {
this.$notify({
title: 'Custom Position',
message: "I'm at the bottom left corner",
position: 'bottom-left',
})
},
open4() {
this.$notify({
title: 'Custom Position',
message: "I'm at the top left corner",
position: 'top-left',
})
},
},
}
</script>
<!--
<setup>
import { defineComponent } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open1 = () => {
ElNotification({
title: 'Custom Position',
message: 'I\'m at the top right corner',
});
};
const open2 = () => {
ElNotification({
title: 'Custom Position',
message: 'I\'m at the bottom right corner',
position: 'bottom-right',
});
};
const open3 = () => {
ElNotification({
title: 'Custom Position',
message: 'I\'m at the bottom left corner',
position: 'bottom-left',
});
};
const open4 = () => {
ElNotification({
title: 'Custom Position',
message: 'I\'m at the top left corner',
position: 'top-left',
});
};
return {
open1,
open2,
open3,
open4,
};
},
});
</setup>
-->
```
:::
### With offset
Customize Notification's offset from the edge of the screen.
:::demo Set the `offset` attribute to customize Notification's offset from the edge of the screen. Note that every Notification instance of the same moment should have the same offset.
```html
<template>
<el-button plain @click="open"> Notification with offset </el-button>
</template>
<script>
export default {
methods: {
open() {
this.$notify.success({
title: 'Success',
message: 'This is a success message',
offset: 100,
})
},
},
}
</script>
<!--
<setup>
import { defineComponent } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open = () => {
ElNotification.success({
title: 'Success',
message: 'This is a success message',
offset: 100,
});
};
return {
open,
};
},
});
</setup>
-->
```
:::
### Use HTML string
`message` supports HTML string.
:::demo Set `dangerouslyUseHTMLString` to true and `message` will be treated as an HTML string.
```html
<template>
<el-button plain @click="open"> Use HTML String </el-button>
</template>
<script>
export default {
methods: {
open() {
this.$notify({
title: 'HTML String',
dangerouslyUseHTMLString: true,
message: '<strong>This is <i>HTML</i> string</strong>',
})
},
},
}
</script>
<!--
<setup>
import { defineComponent } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open = () => {
ElNotification({
title: 'HTML String',
dangerouslyUseHTMLString: true,
message: '<strong>This is <i>HTML</i> string</strong>',
});
};
return {
open,
};
},
});
</setup>
-->
```
:::
:::warning
Although `message` property supports HTML strings, dynamically rendering arbitrary HTML on your website can be very dangerous because it can easily lead to [XSS attacks](https://en.wikipedia.org/wiki/Cross-site_scripting). So when `dangerouslyUseHTMLString` is on, please make sure the content of `message` is trusted, and **never** assign `message` to user-provided content.
:::
### Hide close button
It is possible to hide the close button
:::demo Set the `showClose` attribute to `false` so the notification cannot be closed by the user.
```html
<template>
<el-button plain @click="open"> Hide close button </el-button>
</template>
<script>
export default {
methods: {
open() {
this.$notify.success({
title: 'Info',
message: 'This is a message without close button',
showClose: false,
})
},
},
}
</script>
<!--
<setup>
import { defineComponent } from 'vue';
import { ElNotification } from 'element-plus';
export default defineComponent({
setup() {
const open = () => {
ElNotification.success({
title: 'Info',
message: 'This is a message without close button',
showClose: false,
});
};
return {
open,
};
},
});
</setup>
-->
```
:::
### Global method
Element Plus has added a global method `$notify` for `app.config.globalProperties`. So in a vue instance you can call `Notification` like what we did in this page.
### Local import
```javascript
import { ElNotification } from 'element-plus'
```
In this case you should call `ElNotification(options)`. We have also registered methods for different types, e.g. `ElNotification.success(options)`. You can call `ElNotification.closeAll()` to manually close all the instances.
### Options
| Attribute | Description | Type | Accepted Values | Default |
| ------------------------ | ------------------------------------------------------------------------------------------------------------------ | ---------------- | ------------------------------------------- | --------- |
| title | title | string | — | — |
| message | description text | string/Vue.VNode | — | — |
| dangerouslyUseHTMLString | whether `message` is treated as HTML string | boolean | — | false |
| type | notification type | string | success/warning/info/error | — |
| iconClass | custom icon's class. It will be overridden by `type` | string | — | — |
| customClass | custom class name for Notification | string | — | — |
| duration | duration before close. It will not automatically close if set 0 | number | — | 4500 |
| position | custom position | string | top-right/top-left/bottom-right/bottom-left | top-right |
| showClose | whether to show a close button | boolean | — | true |
| onClose | callback function when closed | function | — | — |
| onClick | callback function when notification clicked | function | — | — |
| offset | offset from the top edge of the screen. Every Notification instance of the same moment should have the same offset | number | — | 0 |
### Methods
`Notification` and `this.$notify` returns the current Notification instance. To manually close the instance, you can call `close` on it.
| Method | Description |
| ---- | ---- |
| close | close the Notification |