What is the best way to receive and transfer the "v-" props to child components?

I am looking to create a series of wrapper components whose main purpose is to have a specific style and contain passed children or props.

One of the wrapper components I have is:

// components/FancyButton.vue

<template>
  <button class="fancy-button">
    <slot />
  </button>
</template>

How can I pass "v-" props to the <button> element so that it can handle click events?

// components/App.vue

<template>
  <FancyButton v-on:click="doSomething()"> <!-- props are not being applied -->
    Some children
  </FancyButton>
</template>

<script>
import FancyButton from './FancyButton'

export default {
  components: {
    FancyButton
  }
}
</script>

Answer №1

When passing a property to a component, you need to define it within the component and then utilize the v-bind syntax when using the component.

For instance, let's say this is your component:

<template>
    <button class="fancy-button">
    <slot />
</button>
</template>

In the script section of the template:

<script>
   module.exports = {

      /...
      props: {
         yourData {
           type: DATA_TYPE
         }
      }
  }
  </script>

To implement this in the wrapper component, do the following:

<template>
   <FancyButton v-on:click="doSomething()" v-bind:yourData=""> 
        Some children
   </FancyButton>
</template>

If you want to pass a function as a prop, follow these steps:

<script>
   module.exports = {

      /...
      props: {
         yourData {
           type: Function
         }
      }
  }
  </script>

However, it is not always recommended to pass functions as props, as events can be used for achieving the desired logic.

I suggest checking out the following resources:

How to Pass a Function as a Prop in Vue

Passing functions as props an anti-pattern in Vue.js

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