Discovering Vue Slot Options: Implementing TypeScript types for slot names and scoped slots within a Vue component

For this demonstration, I have utilized Vue Playground.

Consider a scenario where we incorporate a third-party component from a library known as the Card.vue:

<template>
    <slot name="slot1"></slot>
    <slot name="slot2" title="I am slot 2">
  </slot>
</template>

This component is then integrated into our application, featuring both a named slot and a scoped slot.

<script setup>
import Card from './Card.vue';
</script>

<template>
<Card>
    <template #slot1>
    <h1>
    I am slot 1
    </h1>
  </template>  
  <template #slot2="slotProps">
    <h1>
    {{slotProps.title}}
    </h1>
  </template>  
</Card>
</template>

However, transitioning from a React background where slots are absent and instead there are children prop and Component props, it becomes challenging to comprehend how type information can be provided to a consumer.

How can I determine, in my App.vue file, which slot names are accessible and what scoped slot properties exist?

Answer №1

Utilize VScode and consider adding the Volar plugin for assistance. Take a look at this image to see it in action.

As stated in the Vue documentation regarding Tooling:

The suggested IDE configuration consists of using VSCode along with the Vue Language Features (Volar) extension. This extension offers syntax highlighting, TypeScript support, and intellisense for template expressions and component props.

IDE Support on Vuejs.org

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