element-plus/packages/components/autocomplete/ssr/basic.vue

<template>
  <el-row class="demo-autocomplete text-center">
    <el-col :span="12">
      <div class="sub-title my-2 text-sm text-gray-600">
        list suggestions when activated
      </div>
      <el-autocomplete
        v-model="state1"
        :fetch-suggestions="querySearch"
        class="inline-input"
        placeholder="Please Input"
        @select="handleSelect"
      />
    </el-col>
    <el-col :span="12">
      <div class="sub-title my-2 text-sm text-gray-600">
        list suggestions on input
      </div>
      <el-autocomplete
        v-model="state2"
        :fetch-suggestions="querySearch"
        :trigger-on-focus="false"
        class="inline-input"
        placeholder="Please Input"
        @select="handleSelect"
      />
    </el-col>
  </el-row>
</template>

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

interface RestaurantItem {
  value: string
  link: string
}

const state1 = ref('')
const state2 = ref('')

const restaurants = ref<RestaurantItem[]>([])
const querySearch = (queryString: string, cb: any) => {
  const results = queryString
    ? restaurants.value.filter(createFilter(queryString))
    : restaurants.value
  // call callback function to return suggestions
  cb(results)
}
const createFilter = (queryString: string) => {
  return (restaurant: RestaurantItem) => {
    return (
      restaurant.value.toLowerCase().indexOf(queryString.toLowerCase()) === 0
    )
  }
}

const handleSelect = () => {
  //
}
</script>