reactjs

问题 I just started using react-native and am trying to build an android app with it.. I used create-react-native-app and used the expo template. But I'm not able to fetch data from my server kepp getting "Network Error". My server doesn't have a valid certificate currently. Is there any way to ignore ssl certificate errors in my fetch calls? 回答1: Yes, only use the http instead https , and set the following line in your manifest <application ... android:usesCleartextTraffic="true" ...> 来源： https:/

问题 I just started using react-native and am trying to build an android app with it.. I used create-react-native-app and used the expo template. But I'm not able to fetch data from my server kepp getting "Network Error". My server doesn't have a valid certificate currently. Is there any way to ignore ssl certificate errors in my fetch calls? 回答1: Yes, only use the http instead https , and set the following line in your manifest <application ... android:usesCleartextTraffic="true" ...> 来源： https:/

问题 I have created a frontend in react and a backend in express nodejs, and I am using socket.io for the client and server to communicate. When I load the react page I get the following error every second: Failed to load resource: the server responded with a status of 404 (Not Found) I have set the frontend to run on port 3000 and the server to run on port 3500. The failed connect requests are being sent to the address: http://localhost:3000/socket.io/?EIO=3&transport=polling&t=MoHUt8D Below is

问题 I have created a frontend in react and a backend in express nodejs, and I am using socket.io for the client and server to communicate. When I load the react page I get the following error every second: Failed to load resource: the server responded with a status of 404 (Not Found) I have set the frontend to run on port 3000 and the server to run on port 3500. The failed connect requests are being sent to the address: http://localhost:3000/socket.io/?EIO=3&transport=polling&t=MoHUt8D Below is

问题 I am filtering an array of students based on input from the textbox. How can I get this to work to show students as you type out the first name? My solution is working, but obviously, if you were to backspace, the student array does not re populate. How can I get this to filter as you type the name of the student and also repopulate the array when you backspace? function App() { const [student, setStudent] = useState([]); useEffect(() => { fetch(api) .then((response) => response.json()) .then

问题 I am filtering an array of students based on input from the textbox. How can I get this to work to show students as you type out the first name? My solution is working, but obviously, if you were to backspace, the student array does not re populate. How can I get this to filter as you type the name of the student and also repopulate the array when you backspace? function App() { const [student, setStudent] = useState([]); useEffect(() => { fetch(api) .then((response) => response.json()) .then

问题 I need to read data from axios response through module.export. This is my data: http://localhost:8001 { "name":"Nama Nih", "desc":"Sekolah Terpadu Al-Qudwah - Yayasan Islam Qudwatul Ummah", "prefix":"alqudwah", "footerText":"Yayasan Islam Qudwatul Ummah | All Rights Reserved 2020", "logoText":"Al-Qudwah", "needLogin":false } I call data from axios with this code: brand.js var axios = require('axios'); module.exports = axios.get('http://localhost:8001', { headers: { 'Access-Control-Allow

问题 As a newbie in JS world i am in a big trouble ... I am using a react hook import { useKeycloak } from '@react-keycloak/web'; import { useCallback } from 'react'; export const useAuthenticatedCallback = (callbackFn) => { const [keycloak, initialized] = useKeycloak() const authCallback = useCallback(() => { // Do nothing while Keycloak is initializing if (!initialized) { return } // if user is not authenticated redirect to login if (!keycloak.authenticated) { return keycloak.login() } //

问题 i have an issue in my react app and i dont know how to solve it; i have an array with values and chosen list and a function to add item to the chosen list import React, { useState } from "react"; import Parent from "./Parent"; export default function App() { const [chosenList, setChosenList] = useState([]); const array = ["dsadas", "dasdas", "dasdasd"]; const addToChosenList = string => { setChosenList([...chosenList, string]); }; return ( <div className="App"> <Parent arr={array} chosenList=

问题 As a newbie in JS world i am in a big trouble ... I am using a react hook import { useKeycloak } from '@react-keycloak/web'; import { useCallback } from 'react'; export const useAuthenticatedCallback = (callbackFn) => { const [keycloak, initialized] = useKeycloak() const authCallback = useCallback(() => { // Do nothing while Keycloak is initializing if (!initialized) { return } // if user is not authenticated redirect to login if (!keycloak.authenticated) { return keycloak.login() } //