<docs>
---
order: 1
title:
zh-CN: 异步加载
en-US: Asynchronous loading
## zh-CN
匹配内容列表为异步返回时。
## en-US
async.
</docs>
<template>
<a-mentions v-model:value="value" :loading="loading" @search="onSearch">
<a-mentions-option v-for="{ login, avatar_url: avatar } in users" :key="login" :value="login">
<img :src="avatar" :alt="login" style="width: 20px; margin-right: 8px" />
<span>{{ login }}</span>
</a-mentions-option>
</a-mentions>
</template>
<script lang="ts">
import { debounce } from 'lodash-es';
import { defineComponent, ref } from 'vue';
export default defineComponent({
setup() {
const value = ref<string>('');
const loading = ref<boolean>(false);
const users = ref<{ login: string; avatar_url: string }[]>([]);
const search = ref<string>('');
const loadGithubUsers = debounce((key: string) => {
if (!key) {
users.value = [];
return;
}
fetch(`https://api.github.com/search/users?q=${key}`)
.then(res => res.json())
.then(({ items = [] }) => {
if (search.value !== key) return;
users.value = items.slice(0, 10);
loading.value = false;
});
}, 800);
const onSearch = (searchValue: string) => {
search.value = searchValue;
loading.value = !!searchValue;
console.log(!!searchValue);
console.log('Search:', searchValue);
loadGithubUsers(searchValue);
};
return {
value,
loading,
users,
loadGithubUsers,
onSearch,
},
</script>
