MaxInterview - react usecontext examples

showing results for - "react usecontext examples"

1import React from "react";
2import ReactDOM from "react-dom";
3
4// Create a Context
5const NumberContext = React.createContext();
6// It returns an object with 2 values:
7// { Provider, Consumer }
8
9function App() {
10  // Use the Provider to make a value available to all
11  // children and grandchildren
12  return (
13    <NumberContext.Provider value={42}>
14      <div>
15        <Display />
16      </div>
17    </NumberContext.Provider>
18  );
19}
20
21function Display() {
22  // Use the Consumer to grab the value from context
23  // Notice this component didn't get any props!
24  return (
25    <NumberContext.Consumer>
26      {value => <div>The answer is {value}.</div>}
27    </NumberContext.Consumer>
28  );
29}
30
31ReactDOM.render(<App />, document.querySelector("#root"));
32
33
34
35//now with useContext the same page look like this
36// import useContext (or we could write React.useContext)
37import React, { useContext } from 'react';
38
39// ...
40
41function Display() {
42  const value = useContext(NumberContext);
43  return <div>The answer is {value}.</div>;
44}

1const themes = {
2  light: {
3    foreground: "#000000",
4    background: "#eeeeee"
5  },
6  dark: {
7    foreground: "#ffffff",
8    background: "#222222"
9  }
10};
11
12const ThemeContext = React.createContext(themes.light);
13
14function App() {
15  return (
16    <ThemeContext.Provider value={themes.dark}>
17      <Toolbar />
18    </ThemeContext.Provider>
19  );
20}
21
22function Toolbar(props) {
23  return (
24    <div>
25      <ThemedButton />
26    </div>
27  );
28}
29
30function ThemedButton() {
31  const theme = useContext(ThemeContext);
32  return (
33    <button style={{ background: theme.background, color: theme.foreground }}>
34      I am styled by theme context!
35    </button>
36  );
37}

similar questions

context hook reactjs context usecontext from localhost react usecontext inside class components authentication state react context react context reactjs context api use only dispatch from usecontext

queries leading to this page

usecontext hook and createcontext react router usecontext usecontext in a class component usecontext with function usecontext for class component usecontext react step by step example usecontext react app import usecontext from react usecontext react hooks 23 react createcontext and usecontext react usecontext provider use usecontext in class component usecontext in rect usecontext react native example react usecontext inside class what is usecontext used for react react usecontext in props 3f usecontext react contextprovider react usecontext examples usecontext react tutorial usecontext trong react examples of where to use usecontext usecontext example class react usecontext for classes usecontext plain js react usecontextz usecontext tnext js using usecontext in react usecontext react with return react usecontext api react usecontext import usecontext react usecontext update context how to use usecontext react react usecontext user example createcontext usecontext simple example react usecontext class component react context usecontext issues with react usecontext usecontext methods react usecontext in function react contextprovider and usecontext react usecontext update how does the usecontext hook work in react 3f react js api usecontext easy example of usecontext react porps usecontext react react usecontext docs usecontect vs createcontext react usecontext inside of a hook react usecontext youtue usecontext in class component react usecontext 28 29 react usecontext best practices usecontext reactjs medium using react usecontext react class usecontext react usecontext tips usecontext in react js where to use usecontext react usecontext type script react usecontext as usecontext with state usecontext in class component react usecontext reactjs usecontext and createcontext in react usecontext 28context 29 how to use usecontext for rendering usecontext provider uses of usecontext class component usecontext understanding usecontext react react usecontext in class createcontext hook react usecontext project usecontext api react react update usecontext react js set usecontext provider and usecontext react usecontext react medium use usecontext in react what is usecontext hook in reactjs react native usecontext in class component react usecontext distruction how to use usecontext hook react react usecontext samples vdieo react usecontext appcontext react js usecontext with the example usecontext consumer use usecontext in routes react usecontext in react js example code react context and usecontext react js usecontext example react usecontext guide using usecontext with function react native usecontext example how to use usecontext only when needed react usecontext hook react example usecontext react set value class based component usecontext react 2c 28 usecontext 29 react usecontext setup usecontext 28context 29 react why use usecontext react usecontext documentation react usecontext typescript example react context and usecontext hindi react usecontext across components react set data to usecontext react use usecontext in class component rect usecontext usecontext hook in react what is medium when to use usecontext react usecontext login react usecontext username react how do i import usecontext in react what is react usecontext react usecontext set usecontext react set using usecontext usecontext react blog usecontext hook in react js react usecontext from different class usecontext use in class component how to use usecontext api update usecontext react js react usecontext set value why to use usecontext in react how to use usecontext in react to sen object props import usecontext react usecontext react example on class component how to use usecontext with component in react native react global usecontext import react 2c 7busecontext 7d from 22react 22 3b usecontext on components reactjs react usecontext in hindi usecontext simple example usecontext react description usecontext react class react createcontext use custom hook usecontext hook and createcontext hook how to update a usecontext in react usecontext react example usecontext react hooks usecontext example functional component react usecontext with example usecontext in react react hook usecontext is called in function react usecontext react createcontext usecontext api example usecontext with set import react usecontext from 27react 27 react usecontext react router reactjs usecontext example usecontext in component react usecontext example react native react usecontext explained usecontext example react how to set usecontext react when to use usecontext react react usecontext and context usecontext demo in react native usecontext variable react react usecontext in class components usecontext in react example how to use usecontext in class component react import usecontext in react react js usecontext use of usecontext in react how to use usecontext with class component usecontext react js functional component usecontext example situations where you 27d use usecontext react react usecontext for user react usecontext tedting library usecontext react js tutorial how to add usecontext in react react usecontext equivalent in component how to usecontext react set usecontext what is createcontext and usecontext in reactjs usecontext class component react 2c 28 usecontext example 29 importing usecontext react react component usecontext integrate usecontext in react js usecontext react js tutorila import 7busecontext 7d from 22react 22 usecontext reaact hook usecontext hook in react console usecontext reacr react usecontext extract values react usecontext for functional components react class use usecontext why we use usecontext in react define usecontext in react react what is usecontext how many components can usecontext react reactjs usecontext react usecontext user react usecontext cikk usecontext jsx usecontext 28 29 react what does the usecontext hook return when called 3f react usecontext examplel usecontext example react hooks react functional usecontext to state usecontext hook example import react 2c 7b usecontext 7d from 22react 22 3b usecontext and usecontext api how to use usecontext in a function in react learn react usecontext usecontext react with use context hook and createcontext usecontext hook react functional usecontext react usecontext authentication example project using usecontext in react js usecontext in class component react usecontext api call usecontext react usecontext react js react usecontext state management usecontext with react router usecontext setcontext react usecontext object react usecontext exmpale react usecontext simple example react usecontext hook example what is usecontext hook react usecontext tutorial how to use usecontext in react react class component usecontext const initialcontext 3d react usecontext 28usercontext 29 3b react usecontext 27 what is usecontext in react usecontext in react with examples usecontext hook react usecontext example using it usecontext in reactjs 22usestate 28usecontext 28 22 usecontext react docs usecontext in react how to use react usecontext usecontext in react class component react usecontext for users react usecontext with state react usecontext sample react usecontext example react usecontext login import 7busecontext reac native usecontext usecontext react hooks example react createcontext usecontext react usecontext samples usecontext react hook example usecontext react class component usecontext change react example usecontext createcontext react usecontext set usecontext with react usecontext state react usecontext with function use of usecontext react native demo what is usecontext hook in react react usecontext in classes react usecontext in utils function example of usecontext react native how to use usecontext in class component usecontext import react usecontext use usecontext in other component of app js usecontext inside custom hook react usecontext in class component what is usecontext in react js integrate usecontext in raect js react usecontext inside class components rect usecontext react router dom usecontext access usecontext in app js react usecontext 28 29 react usecontext import usecontext in function react usecontext 28 29 in react simple usecontext example react usecontext examples