React Hooks useContext Tutorial (Storing a User)
Why Stack Overflow recommends it
Stack Overflow users link it when answering or asking about useContext and sharing state across components, since it is a quick visual walkthrough of the createContext, Provider and useContext pattern.
Recommended by 4 people across 4 different months, 2020 to 2021.
What it is
A short tutorial by Ben Awad that shows how to use React's useContext hook to store a logged-in user in a context and read or update it from child components. It is part of his React Hooks tutorial playlist and links to the example code on GitHub.
What people said
Recommends TheMightyLlama · 2020-10 · Stack Overflow · on “React: Passing values to a context returns: 'TypeError: Right side of assignment cannot be destructured'”
I have a search function for which I'm attempting to raise the state into a parent component. However, on attempting to submit the form I am presented with the error TypeError: Right side of assignment cannot be destructured and in reference to the line const {searchValues, setSearchValues} = useContext(SearchContext); in Search.js . I've been basing this code on this YouTube tutorial [this video] and can't seem to replicate the functionality when I have multiple values to pass and set. SearchContext.js import { createContext} from 'react' export const SearchContext = createContext(null); Body.js Some code removed for readability. import React, {useState} from "react"; import WikiHeader from './w
Recommends yudhiesh · 2021-03 · Stack Overflow · on “useContext is not working in my react code”
@SamuelT also this video [this video] does a great job of explaining how to use the `useContext` hook with a more complex example
Recommends Ibrahim A. Elaradi · 2021-10 · Stack Overflow · on “How to show flatlist result on screen by click on stack screen header button?”
Have you tried using the Context API provided by react? it works by wrapping your application in a provider that can be accessed by both your header and your screen, that way the header can modify the data stored in the context, and the screen immediately consumes the data modified (shared data between components in different hierarchies) Take a look at the docs [LINK] , Ben Awad does a great job at explaining it in this video [this video] if you're more of a visual learner, his use case is for web development, but the same concept applies for React Native. Hope you find this helpful!
Recommends Svante Pålsson · 2021-12 · Stack Overflow · on “React.js using form input in another component”
Solved this problem with useContext. Used the principles in this youtube video on the subject: [this video] I think it might be a better practice to do as MrPickles wrote as an answer to my first post.
Cites Alwaysblue · 2020-06 · Stack Overflow · on “Passing state vs using context in react hooks”
I was exploring useContext react hook by going through this video [this video] In this video, what they have done is basically create a context context.js import { createContext } from "react"; export const CustomerContext = createContext(null); And pass those context to child component import Table from "./components/table"; import React, { useState } from "react"; import { CustomerContext } from "./context"; const App = () => { const [user, setUser] = useState(null); return ( <div> <p> Hello World</p> <CustomerContext.Provider value={{ user, setUser }}> <Table /> </CustomerContext.Provider> </div> ); }; export default App; And then in the child component access the value or change the value imp
Cites TheMightyLlama · 2020-10 · Stack Overflow · on “React Error: Element Type is Invalid with named exports”
Yep, that's exactly it. I don't know why this works over the solution proposed in this video which also works. [this video] Feel free to add the answer and I'll accept ti.