vue计算被隐藏的页面高度

<template>
  <div>
    <div class="content" ref="content">
      <p v-for="index in 10">这是第{{index}}段文字</p>
    </div>
    <div class="show-more" @click="showMore">{{showMoreText}}</div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isshowMore: false,
      showMoreText: '显示更多'
    }
  },
  computed: {
    contentHeight() {
      // 获取内容区高度
      return this.$refs.content.scrollHeight + 'px'
    }
  },
  methods: {
    showMore() {
      this.isShowMore = !this.isShowMore
      if (this.isShowMore) {
        this.showMoreText = '收起'
      } else {
        this.showMoreText = '显示更多'
      }
    }
  }
}
</script>

<style>
.content {
  overflow: hidden;
  max-height: 200px;
  transition: max-height .3s ease;
}

.show-more {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  color: #fff;
  background: #f60;
  cursor: pointer;
}
</style>