我是ReactJS新手。我有一个通过单击每个列标题进行排序的表。这是我的代码:
import React, { useState, useEffect } from 'react'
import { getUsers } from '../../services/userService'
const Table = () => {
const [users, setUsers] = useState([]);
const [currentUsers, setCurrentUsers] = useState([]);
const [search, setSearch] = useState('');
const [isSorted, setIsSorted] = useState(false);
const [valueHeader, setValueHeader] = useState({title: "",body: ""}); //Value header state
const [sortedUsers, setSortedUsers] = useState([]);
const pageItemCount = 15
const [pageCount, setPageCount] = useState(0)
const [currentPage, setCurrentPage] = useState(1)
useEffect(async () => {
try {
const response = await getUsers(search);
setUsers(response.data.users);
setPageCount(Math.ceil(response.data.users.length / pageItemCount))
setCurrentUsers(response.data.users.slice(0, pageItemCount))
} catch (error) { }
}, [search]);
const sortFn = (userA, userB) => {
// sort logic here, it can be whatever is needed
// sorting alphabetically by `first_name` in this case
return userA[valueHeader.body].localeCompare(userB[valueHeader.body]) //<== Use value of culumn header
}
useEffect(() => {
if (isSorted) {
setSortedUsers(currentUsers.slice().sort(sortFn))
} else {
setSortedUsers(currentUsers)
}
}, [isSorted, currentUsers, valueHeader]) //<== add valueHeader to dependency
const toggleSort = (target) => {
setIsSorted(!isSorted)
setValueHeader({
title: target,
body: target == "name" ? "first_name" : "mobile_number"
}) //<=== set state of value header
}
const changePage = (i) => {
setCurrentPage(i)
const startItem = ((i - 1) * pageItemCount) + 1
setCurrentUsers(users.slice(startItem - 1, (pageItemCount * i)))
}
const handleChange = (event, value) => {
changePage(value);
}
return (
<div dir='rtl' className='bg-background mt-10 px-5 rd1200:px-30 overflow-auto'>
<table className='w-full border-separate rounded-md'>
<thead>
<tr className='bg-text-secondary text-white shadow-sm text-center'>
<th className='p-2' onClick={()=>toggleSort("name")}>name</th>
<th className='p-2' onClick={()=>toggleSort("mobile")}>mobile</th>
</tr>
</thead>
<tbody>
{sortedUsers.map((item, index) =>
<tr key={item.id} className={index % 2 === 0 ? 'bg-white shadow-sm text-center' : 'bg-text bg-opacity-5 shadow-sm text-center'}>
<td className='text-text text-sm p-2'>{item.first_name}</td>
<td className='text-text text-sm p-2'>{item.mobile_number}</td>
</tr>
)}
</tbody>
</table>
<Pagination className="mt-2 pb-20" dir='ltr' page={currentPage} count={pageCount} onChange={handleChange} variant="outlined" shape="rounded" />
</div>
)
}
export default Table
现在,当我单击每个列标题时,我的表将根据该列进行排序。我想知道是否有可能首先根据特定列对表进行排序。我的意思是,例如,首先,我的表将根据
name
默认情况下为列(无需单击列标题或执行任何其他操作)。