Vue點擊改變屬性(改變文字顏色)

 

 

<template>
    <div class="tab-control">
        <div v-for="(item , index) in title" class="tab-control-item" 
        :class="{active: index ===  currentIndex}" @click='itemClick(index)'>
            <span>{{item}}</span>
        </div>
    </div>
</template>

<script>
export default {
    name: 'TabControl',
    data:{
        title:["新款" , "流行" , "推薦"]
            }
        }
    },
    data(){
    return{
      currentIndex: 0
    }
  },
  methods: {
    itemClick(index){
      this.currentIndex = index;
      this.$emit('tabClick', index)
    }
  },
}
</script>

<style scoped>
     .tab-control{
    display: flex;
    text-align: center;
    font-size: 15px;
    height: 40px;
    line-height: 40px;
    background-color: #fff;
  }

  .tab-control-item{
    flex:1;
  }

  .tab-control-item span{
    padding: 5px;
  }

  .active{
    color: deeppink
  }

  .active span{
    border-bottom: 3px solid  deeppink;
  }

  .tab-control{
      position: sticky;
      top: 44px
  }
</style>