我想问一些关于、react、和缺失的依赖项的问题。
我尽量简明扼要,这是我的控制台里的警告信息。
Compiled with warnings.
./src/views/categories/Categories.tsx
Line 14:6: React Hook useEffect has a missing dependency: 'dispatcher'. Either include it or remove the dependency array react-hooks/exhaustive-deps
钩子useEffect的代码
const [categ
`
import './App.css';
import ArrayState from './components/ArrayState';
import FetchApi from './components/FetchAPI/FetchApi';
import Login from './components/Login';
import Useeffect2 from './components/Useeffect2';
import UseEffects from './components/Us
在useEffect的依赖数组中定义setState值的想法是什么?
const [someState, setSomeState] = useState();
...
useEffect(() => {
// Do something
setSomeState('some value');
}, [setSomeState]);
React Hook useEffect has a missing dependency: 'setSomeState'.
Either include it or remove the dependency arra
尝试在React中使用Microsoft的SSO,我想
on first load to activate the method to attempt to sign in. So that I don't need to ask the user to click a button, it should just be automatic.
我刚接触react和生命周期方法,但使用componentWillLoad或componentDidLoad没有任何意义,因为它只是每次都要检查。基本上,整个网站应该是可见的,如果登录,所以我认为设置我的保护路径后,这应该是可行的
有没有关于如何
一旦我继续在我的web应用程序中路由/login,它就会触发一个useEffect,它不应该在此状态被更改,请看一下我的代码,告诉我我哪里错了。
function Login(){
const history = useHistory();
var [email, setEmail] = React.useState("");
var [password, setPassword] = React.useState("");
var [isLoggedIn, setLogin] = React.useState(false);
var [allTodosLis
我目前正在研究useEffect的react文档示例
import React, { useState, useEffect } from 'react';
function Example() {
const [count, setCount] = useState(0);
// Similar to componentDidMount and componentDidUpdate:
useEffect(() => {
// Update the document title using the browser API
document.
我尝试在useEffect中更新数据,但在控制台中显示警告。
React Hook useEffect has missing dependencies: 'dispatch', 'id', and 'state.selectedHotel'. Either include them or remove the dependency array react-hooks/exhaustive-deps
码
import { GlobalContext } from "../../../context/globalContext";