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@zeix/ui-element

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UIElement - a HTML-first library for reactive Web Components

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[**@zeix/ui-element**](../README.md) *** [@zeix/ui-element](../globals.md) / on # Function: on() > **on**\<`K`, `P`, `E`\>(`type`, `handler`, `options`): [`Effect`](../type-aliases/Effect.md)\<`P`, `E`\> Defined in: [src/core/events.ts:147](https://github.com/zeixcom/ui-element/blob/1e5ebee179adfc4619d3d0e9d2b864d1e97ba797/src/core/events.ts#L147) Effect for attaching an event listener to an element. Provides proper cleanup when the effect is disposed. ## Type Parameters ### K `K` *extends* `string` ### P `P` *extends* [`ComponentProps`](../type-aliases/ComponentProps.md) ### E `E` *extends* `Element` = `HTMLElement` ## Parameters ### type `K` Event type ### handler [`EventHandler`](../type-aliases/EventHandler.md)\<`P`, `E`, [`EventType`](../type-aliases/EventType.md)\<`K`\>\> Event handler function ### options Event listener options `boolean` | `AddEventListenerOptions` ## Returns [`Effect`](../type-aliases/Effect.md)\<`P`, `E`\> Effect function that manages the event listener ## Since 0.14.0