vue class binding

<div class="static"
  v-bind:class="{ active: isActive, 'text-danger': hasError }"
></div><div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div><div v-bind:class="{ active: isActive }"></div>
<div class="defaultclass" :class="condition?' conditionalclasstoappend':''"></div><div v-bind:class="[{ active: isActive }, errorClass]"></div><div :class="{ 'prop-name': boolVar }"></div>