[英]React: why setState cause unmount a component inside a stateless component?
[英]How to setState, object value in the stateless component in react?
我正在使用一個無狀態組件並通過 Axios & useEffect() 從 API 中獲取值,然后我在狀態中設置了一個值,但我想在狀態中設置響應對象:
import React, { useState, useEffect } from "react";
import axios from 'axios';
export default function Login(props) {
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const [userData, setUserData] = useState([]);
function validateForm() {
return email.length > 0 && password.length > 0;
}
useEffect(()=>{
axios.get(apiBaseUrl+'api/users')
.then(response =>{
// how to set my value: response.data.data
setUserData(response.data.data);
console.log(response.data.data);
}, error => {
console.log(error)
})
},[])
setUserData
是一個更新userData
值的函數。 下面的代碼應該可以解決問題
const [userData, setUserData] = useState({});
useEffect(()=>{
axios.get(apiBaseUrl+'api/users')
.then(response =>{
// how to set my value: response.data.data
setUserData(response.data.data)
console.log(response.data.data)
}, error => {
console.log(error)
})
},[])
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