Tips for creating a dynamic component with v-for and utilizing dynamic slots

I am facing an issue with a child component that utilizes v-for. My goal is to allow the parent component to dictate how each item within the v-for loop is displayed by passing down a slot or similar mechanism. The challenge lies in the fact that the parent does not have direct access to individual items as they are being rendered.

I have attempted solutions such as passing a slot with specific keys, like this:

<child-comp :items="items">
    <div v-text="item.text" slot="body"/>
</child-comp>

Although the basic code structure I am aiming for looks like this (it is not functioning as expected):

The parent component would be structured like this:

<template>
   <child-comp :items="items>
     <div v-text="item.text"
    </child-comp>
</template>
items = [{ text: 'hello'}]

The child component would look something like this:

<template>
  <div>
     <span v-for="item in items">
       <slot></slot>
     </span>
  </div>
</template>

It's important for this solution to be dynamic since different items may require different display methods, such as using v-text, adding additional HTML elements like images, or implementing other unique functionalities.

Answer №1

If you're searching for information on scoped slots, you've come to the right place.

Check out this link for more details on scoped slots in Vue.js

It's important to note that the syntax for using scoped slots changed with Vue 2.6.0, so make sure you are aware of which version you are working with.

In order to pass the item to the slot from the child component, your code should look something like this:

<template>
  <div>
    <span v-for="item in items">
      <slot :item="item"></slot>
    </span>
  </div>
</template>

For Vue 2.6.0 and above, the parent component would be structured as follows:

<template>
  <child-comp :items="items">
    <template v-slot:default="slotProps">
      <!-- Any additional content needed in the parent goes here -->
      {{ slotProps.item }}
    </template>
  </child-comp>
</template>

Any props passed by the child to the slot will be accessible within the slotProps object. Typically, these props are destructured according to the needs of the application (refer to the documentation for further clarification).

If you're using Vue 2.5, remember to use slot-scope instead:

<template>
  <child-comp :items="items">
    <template slot-scope="slotProps">
      <!-- Parent-specific content can be inserted here -->
      {{ slotProps.item }}
    </template>
  </child-comp>
</template>

In versions prior to Vue 2.5.0, slot-scope was known as scope.

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