Nuxt/docs/3.api/3.utils/create-visible-loader.md
2024-06-17 17:19:35 +03:00

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---
title: 'createVisibleLoader'
description: A utility function to customize delayed hydration based on visibility properties.
links:
- label: Source
icon: i-simple-icons-github
to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/hydrate.ts
size: xs
---
You can use this utility to customize the conditions through which delayed hydration components would hydrate, based on their visiblity status and properties.
## Parameters
- `options`: `{ root, rootMargin, threshold }`
## Example
If you would like to change the threshold of the element:
```vue [pages/index.vue]
<template>
<div>
<LazyVisibleMyComponent :loader="createVisibleLoader({threshold: 0.2})"/>
</div>
<template>
```
::read-more{to="/docs/guide/directory-structure/components#delayed-hydration"}
::
::read-more{to="https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API"}
This is based on the `IntersectionObserver` web API, and therefore only accepts the API's properties. You can specify only part of the properties, while the rest will default to the web API's defaults.
::