What is the correct way to export a component in code?

In this scenario, I am working with a component that includes a list of constructors for Svelte components, known as items:

<script lang="ts">
  // ...other script data
  export let items: ConstructorOfATypedSvelteComponent[];
</script>

<!-- ...some other html code -->
{#each items as item}
   <!-- ...even more html code -->
   <svelte:component this={item}></svelte:component>
{/each}

This is just a basic example, but it can be cumbersome to integrate additional features like named slots due to the use of

ConstructorOfATypedSvelteComponent
.

However, in

ConstructorOfATypedSvelteComponent
's JSDocs:

/**
 * Ambient type only used for intellisense, DO NOT USE IN YOUR PROJECT
 */
declare type ConstructorOfATypedSvelteComponent = new (args: {target: any, props?: any}) => ATypedSvelteComponent

Given this cautionary note, I'm uncertain about the recommended approach for defining typed Svelte components. Is there a preferred method or alternative solution I should consider?

Answer №1

Consider utilizing this code snippet:

<script lang="ts">
    import type { ComponentType, SvelteComponentTyped } from 'svelte';

    export let items: ComponentType<SvelteComponentTyped>[];
</script>

The reason for the warning is that your local build tools may not have access to the type definition since it is primarily meant to assist in editing. It's recommended to instead use types directly exported from the svelte package.

If needed, you can create your own version of

ConstructorOfATypedSvelteComponent
, although it may be unnecessary.

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