how to add Vue props value to background-image - css

Question

I'm new in VueJS and I get confused to change background image from Vue props value.
I've created simple table from 'vue3-easy-data-table'.
BaseTable.vue:
<template>
<EasyDataTable>
...
</EasyDataTable>
</template>
<script setup lang="ts">
changeImg: {
type: String,
}
})
</script>
<style>
.vue3-easy-data-table__message {
background-image: url("`${v-bind("changeImg")}`");
/* background-image: var(--image-url); */
/* background-image: url('#/assets/img/noDataMultiplierOnCity.svg'); */
}
</style>
View.vue:
<template>
<BaseTable
:changeImg= "image"
/>
</template>
<script lang="ts" setup>
const image : string = "'#/assets/img/noDataMultiplierOnCity.svg'"
</script>
I've tried solution from this link https://stackoverflow.com/questions/42872002/in-vue-js-component-how-to-use-props-in-css but no gain.
Already tried as in the comments in the code, in this case I can just style the component in style tag cause the class is from 'vue3-easy-data-table' (maybe have another way to apply style to it?)
I want to make the background image from BaseTable so it can be reused in other file.

Answer 1

I hope I understood you right and this example will help you
template:
<div :style="styleExample" />
script:
let styleExample = { 'width': props.examplePro }

Answer 2

One way to solve this is to use an inline reactive style. For example you could give your script a method that convers the prop into a style, one that holds the image and any other defining features:
<template>
<EasyDataTable :style="backgroundStyles(image)">
...
</EasyDataTable>
</template>
<script setup>
changeImg: {
type: String,
}
})
const backgroundStyles = (img) => {
return {
'background-image': `url(${img})`,
'background-size': 'cover'
}
}
</script>
code:
App.vue
<script setup>
import { ref } from 'vue'
import BaseTable from './BaseTable.vue'
import BaseTable2 from './BaseTable2.vue'
const msg = ref('Hello World!')
const imageUrl = ref("https://cdn.mos.cms.futurecdn.net/SWx64q2g3wax53Xz5H4QjS-970-80.jpg.webp");
</script>
<template>
<h1>{{ msg }}</h1>
<input v-model="msg">
<BaseTable :image="imageUrl"/>
<hr>
<BaseTable2 :image="imageUrl"/>
</template>
BaseTable.vue
<template>
<div class="bkgrnd" :style="backgroundStyles(image)">
<h2>
Base Table
</h2>
<ul v-for="index in 8" :key="index">
<li>Index: {{ index }}</li>
</ul>
</div>
</template>
<script setup>
const props = defineProps(['image'])
const backgroundStyles = (img) => {
return {
'background-image': `url(${img})`,
'background-size': 'cover'
}
}
</script>
<style scoped>
.bkgrnd {
color: white;
font-style: bold;
}
</style>
Solution using the prop in the CSS
Another way to do this can be to avoid inline styles and instead display the background image in the <style> CSS code. To do this, I would use a computed property to create a URL from the prop, something like:
const computedUrl = computed(() => {
return `url(${props.image})`;
});
Code example,
BaseTable2.vue
<template>
<div class="bkgrnd">
<h2>
Base Table 2
</h2>
<ul v-for="index in 8" :key="index">
<li>Index: {{ index }}</li>
</ul>
</div>
</template>
<script setup>
import { computed } from 'vue';
const props = defineProps(['image'])
const computedUrl = computed(() => {
return `url(${props.image})`;
});
</script>
<style scoped>
.bkgrnd {
color: white;
font-style: bold;
background-image: v-bind(computedUrl);
}
</style>
Both examples can be found at the Vue SFC Playground