conditional class vue

<div :class="{ 'prop-name': boolVar }"></div>

<template>
  <span
    class="description"
    :class="darkMode ? 'dark-theme' : 'light-theme'"
  >
    This is how you add dynamic classes in Vue.
  </span>
</template>

<div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div>

<div v-bind:class="{ active: isActive }"></div>

<figure :style="[item.main_featured ? {'background': 'url(' + item.main_featured + ') center no-repeat'} : {'background': '#FFF'}]">

<div class="defaultclass" :class="condition?' conditionalclasstoappend':''"></div>

<div v-bind:class="[{ active: isActive }, errorClass]"></div>

v-bind:style= "[condition ? {styleA} : {styleB}]"

<div class="static"
  v-bind:class="{ active: isActive, 'text-danger': hasError }"
></div>