context-api

问题 I have a Context API file setup which has a state and a function which fetches data from an API and sets the state, and i want to pass the state down to my other components. In my App.js, I am using React-Router to specify the routes. How do i pass the state down to these components using Context API, whilst using React-Router. My ApiContext.js file looks like this : import React, {useState, createContext } from 'react'; export const ApiContext = createContext(); export const ApiProvider =

问题 How to change this class base Context API to reach Hook without changing other components that already consumed it? I am new to react and spend all night and I got stuck. The actual code is more than this but I'm trying to remove some of the code for simplicity purposes: import React, { createContext, Component } from 'react' const MainContext = createContext(); class MainContextProvider extends Component { state = { isLogin : false, loginData : [], spinner : false } handleUserLogin = (res) =

问题 i have simple store import React, { createContext, useReducer } from "react"; import Reducer from "./UserReducer"; const initialState = { user: {}, error: null }; const Store = ({ children }) => { const [state, dispatch] = useReducer(Reducer, initialState); return ( <Context.Provider value={[state, dispatch]}> {children} </Context.Provider> ); }; export const Context = createContext(initialState); export default Store; i have wrapped my app with it like <Store> <ThemeProvider theme={Theme}>

问题 I have some general questions which are bothering me regarding the context API and local storage. When to use local storage?, when to use the Context API and when would I use both? I know that to persist data after the refresh I need something like local storage or session storage, so do I ditch the context API entirely and just store everything in the local storage? this way I can not only store data but also keep it on refresh? some insight would be really helpful. What are some pros and

问题 I just started learning React 2 weeks ago so I am still finding some concepts difficult. I went from building a CRA to converting it to NextJS and opting for using context API with hooks for state management. I am working on filtering right now for a list of articles using a dropdown. When I select a certain type of article, the list filters correctly, but as I go back to the dropdown, only the original option is there along with the current option. When I click on the original option, all

问题 I just started learning React 2 weeks ago so I am still finding some concepts difficult. I went from building a CRA to converting it to NextJS and opting for using context API with hooks for state management. I am working on filtering right now for a list of articles using a dropdown. When I select a certain type of article, the list filters correctly, but as I go back to the dropdown, only the original option is there along with the current option. When I click on the original option, all