A guide to sending props to a CSS class in Vue 3

Question

A guide to sending props to a CSS class in Vue 3

I need to develop a custom toast component that includes a personalized message and class. While I have successfully passed the message as props, I am encountering difficulties in applying the bootstrap class.

Component File: Toast.vue

<script setup>
    const props = defineProps({
      message:{
        type:String,
        default:'My message'
      },
      customClass:{
        type:String,
         default:'text-bg-info'
       }
     })
    </script>
    
    <template>
      <div class="toast-container position-fixed bottom-0 end-0 p-3">
        <div ref="toast1" id='showToast' class="toast" :class={{props.customClass}} role="alert">
          <div class="toast-body">
            <span>{{ props.message }}</span>
          </div>
        </div>
      </div>
    </template>

Parent Component Home.vue:

<script setup>
    import Form from '../components/Form.vue'
    import Toast from '../components/Toast.vue'
    </script>
    
    <template>
      <main class="mt-5">
        <Form />
        <Toast
        message="Success!"
        customClass="text-bg-success"
        ></Toast>
      </main>
    </template>

javascript css vue.js vuejs3 bootstrap-5

Answer 1

Answer №1

category is considered a transitive attribute and is directly passed without the necessity of declaring it as a prop. To prevent unwanted behavior, you can disable attribute inheritance:

<script>
export default {
  inheritAttrs: false
}
</script>

<script setup>
const properties = defineProps({
  note:{
    type:String,
    default:'My note'
  },
})
</script>

<template>
  <div class="note-container position-fixed bottom-0 end-0 p-3">
    <div ref="note1" id='showNote' class="note" :class="$attrs.class" role="alert">
      <div class="note-body"& The suppressed eld to be written here.-->
        <span>{{ note }}</span>nd stop—The Earwig-ding '
      </div>
    </div>
  </div>
</template>

Answer 2

category is considered a transitive attribute and is directly passed without the necessity of declaring it as a prop. To prevent unwanted behavior, you can disable attribute inheritance:

<script>
export default {
  inheritAttrs: false
}
</script>

<script setup>
const properties = defineProps({
  note:{
    type:String,
    default:'My note'
  },
})
</script>

<template>
  <div class="note-container position-fixed bottom-0 end-0 p-3">
    <div ref="note1" id='showNote' class="note" :class="$attrs.class" role="alert">
      <div class="note-body"& The suppressed eld to be written here.-->
        <span>{{ note }}</span>nd stop—The Earwig-ding '
      </div>
    </div>
  </div>
</template>

Answer 3

Answer №2

While working on my template code, I came across an issue in the child component related to passing class props:


<template>
  <div class="toast-container position-fixed bottom-0 end-0 p-3">
    <div ref="toast1" id='showToast' class="toast" :class="props.class" role="alert">
      <div class="toast-body">
        <span>{{ props.message }}</span>
      </div>
    </div>
  </div>
</template>

Answer 4

While working on my template code, I came across an issue in the child component related to passing class props:


<template>
  <div class="toast-container position-fixed bottom-0 end-0 p-3">
    <div ref="toast1" id='showToast' class="toast" :class="props.class" role="alert">
      <div class="toast-body">
        <span>{{ props.message }}</span>
      </div>
    </div>
  </div>
</template>

A guide to sending props to a CSS class in Vue 3

Answer №1

Answer №2

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