vuejs check class when click code example

Example 1: if cluse in class in vue

<div  :class="{'collapse':true , 'show' : key == 0 ? true : false }">
           
</div>

Example 2: if cluse in class in vue

<template>
  <span :class="computedClass">
    We've learned so much about conditional class bindings!
  </span>
</template>



export default {
  computed: {
    computedClass() {
      let className = 'default';

      // More complicated logic to determine what
      // class should be applied

      return className;
    }
  }
}