@zeix/ui-element/docs-src/pages/api/type-aliases/Effect.md

UIElement - a HTML-first library for reactive Web Components

[**@zeix/ui-element**](../README.md)

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[@zeix/ui-element](../globals.md) / Effect

# Type Alias: Effect()\<P, E\>

> **Effect**\<`P`, `E`\> = (`host`, `element`) => [`Cleanup`](Cleanup.md) \| `void`

Defined in: [src/core/reactive.ts:15](https://github.com/zeixcom/ui-element/blob/1e5ebee179adfc4619d3d0e9d2b864d1e97ba797/src/core/reactive.ts#L15)

## Type Parameters

### P

`P` *extends* [`ComponentProps`](ComponentProps.md)

### E

`E` *extends* `Element`

## Parameters

### host

[`Component`](Component.md)\<`P`\>

### element

`E`

## Returns

[`Cleanup`](Cleanup.md) \| `void`