element-plus/docs/examples/menu/vertical.vue

<template>
  <el-row class="tac">
    <el-col :span="12">
      <h5>Default colors</h5>
      <el-menu
        default-active="2"
        class="el-menu-vertical-demo"
        @open="handleOpen"
        @close="handleClose"
      >
        <el-sub-menu index="1">
          <template #title>
            <i class="el-icon-location"></i>
            <span>Navigator One</span>
          </template>
          <el-menu-item-group title="Group One">
            <el-menu-item index="1-1">item one</el-menu-item>
            <el-menu-item index="1-2">item one</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="Group Two">
            <el-menu-item index="1-3">item three</el-menu-item>
          </el-menu-item-group>
          <el-sub-menu index="1-4">
            <template #title>item four</template>
            <el-menu-item index="1-4-1">item one</el-menu-item>
          </el-sub-menu>
        </el-sub-menu>
        <el-menu-item index="2">
          <i class="el-icon-menu"></i>
          <span>Navigator Two</span>
        </el-menu-item>
        <el-menu-item index="3" disabled>
          <i class="el-icon-document"></i>
          <span>Navigator Three</span>
        </el-menu-item>
        <el-menu-item index="4">
          <i class="el-icon-setting"></i>
          <span>Navigator Four</span>
        </el-menu-item>
      </el-menu>
    </el-col>
    <el-col :span="12">
      <h5>Custom colors</h5>
      <el-menu
        active-text-color="#ffd04b"
        background-color="#545c64"
        class="el-menu-vertical-demo"
        default-active="2"
        text-color="#fff"
        @open="handleOpen"
        @close="handleClose"
      >
        <el-sub-menu index="1">
          <template #title>
            <i class="el-icon-location"></i>
            <span>Navigator One</span>
          </template>
          <el-menu-item-group title="Group One">
            <el-menu-item index="1-1">item one</el-menu-item>
            <el-menu-item index="1-2">item one</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="Group Two">
            <el-menu-item index="1-3">item three</el-menu-item>
          </el-menu-item-group>
          <el-sub-menu index="1-4">
            <template #title>item four</template>
            <el-menu-item index="1-4-1">item one</el-menu-item>
          </el-sub-menu>
        </el-sub-menu>
        <el-menu-item index="2">
          <i class="el-icon-menu"></i>
          <span>Navigator Two</span>
        </el-menu-item>
        <el-menu-item index="3" disabled>
          <i class="el-icon-document"></i>
          <span>Navigator Three</span>
        </el-menu-item>
        <el-menu-item index="4">
          <i class="el-icon-setting"></i>
          <span>Navigator Four</span>
        </el-menu-item>
      </el-menu>
    </el-col>
  </el-row>
</template>

<script lang="ts">
import { defineComponent } from 'vue'

export default defineComponent({
  setup() {
    const handleOpen = (key, keyPath) => {
      console.log(key, keyPath)
    }
    const handleClose = (key, keyPath) => {
      console.log(key, keyPath)
    }
    return {
      handleOpen,
      handleClose,
    }
  },
})
</script>