React Hooks & React Context vs Redux All In One

React Hooks & React Context vs Redux All In One

demos

import {ThemeContext, themes} from './theme-context';
import ThemedButton from './themed-button';

// An intermediate component that uses the ThemedButton
function Toolbar(props) {
  return (
    <ThemedButton onClick={props.changeTheme}>
      Change Theme
    </ThemedButton>
  );
}

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      theme: themes.light,
    };

    this.toggleTheme = () => {
      this.setState(state => ({
        theme:
          state.theme === themes.dark
            ? themes.light
            : themes.dark,
      }));
    };
  }

  render() {
    // The ThemedButton button inside the ThemeProvider
    // uses the theme from state while the one outside uses
    // the default dark theme
    return (
      <Page>
        <ThemeContext.Provider value={this.state.theme}>
          <Toolbar changeTheme={this.toggleTheme} />
        </ThemeContext.Provider>
        <Section>
          <ThemedButton />
        </Section>
      </Page>
    );
  }
}

const root = ReactDOM.createRoot(
  document.getElementById('root')
);
root.render(<App />);

https://legacy.reactjs.org/docs/context.html

refs

https://www.cnblogs.com/xgqfrms/p/12490076.html

https://blog.logrocket.com/use-hooks-and-context-not-react-and-redux/

---

---

©xgqfrms 2012-2021

www.cnblogs.com/xgqfrms 发布文章使用：只允许注册用户才可以访问！

原创文章，版权所有©️xgqfrms, 禁止转载 🈲️，侵权必究⚠️！

---