I am currently iterating over an array named cars using the v-for directive. I would like to implement a condition within this loop so that if the color property matches a certain value, a specific CSS style is applied.
<p v-for="car in cars" :key="car.color">
The desired code should look something like this:
If car.color == "red", apply class="style1"; else if car.color == "green", apply class="style2"... and so forth.
What you are referring to is the concept of dynamic class bindings.
v-if is used for conditional rendering, determining whether an element should be displayed on the screen or not.
By utilizing class bindings, you can assign a class, such as "style1" or "style2", to an element based on certain conditions:
<p v-for="car in cars" :key="car.id"
:class="{
style1: car.color === 'red',
style2: car.color === 'blue'
}">
{{ car.name}}
</p>You can also use a function like
:class="someFunction(car.color)"Although using v-if with v-for may not directly relate to your current issue, it's good to know that you can use both simultaneously, just not on the same element. The Vue documentation provides a solution:
Avoid using v-if and v-for together on the same element to prevent implicit precedence issues
To address this, move v-for to a parent tag for clearer visibility
<template v-for="todo in todos">
<li v-if="!todo.isComplete">
{{ todo.name }}
</li>
</template>Implementing Dynamic Class Binding
<p v-for="car in cars" :key="car.color" :class="getCarStyle(car.color)">
{{ car.name }}
</p>
Defining the getCarStyle Method
getCarStyle(color) {
if (color === "red") {
return "style1";
} else if (color === "green") {
return "style2";
}
}
<div id="unique-content">
<script setup>
import { ref } from 'vue';
const message = ref('Hey there!');
const vehicles = {
vehicleOne: {
brand: 'Ford',
type: 'SUV',
},
vehicleTwo: {
brand: 'Chevrolet',
type: 'Truck',
},
}
</script>
<template>
<h1>{{ message }}</h1>
<input v-model="message">
<p v-for="vehicle in vehicles" :key="vehicle.type" :class="vehicle.type"> {{ vehicle.brand }}</p>
</template>
<style scoped>
.SUV {
color: blue;
}
.Truck {
color: red;
}
</style>
</div>
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