Created
October 11, 2017 16:30
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Simple HOC vs Render Props (function as children) Example
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>unpkg-demos :: global-react</title> | |
| </head> | |
| <body> | |
| <div id="app"></div> | |
| <script src="https://unpkg.com/[email protected]/umd/react.production.min.js" | |
| integrity="sha384-lJJbYsDe7wDuOttI/MIHfj68o3fVZOhJDxEn0cTPbDq5mkzjF1p+AFEp3r/HpUnt" | |
| crossorigin="anonymous"></script> | |
| <script src="https://unpkg.com/[email protected]/umd/react-dom.production.min.js" | |
| integrity="sha384-urrH8a5NtX87DSmFO4pKPICl5RHszNM6yx75JIYhynT2ukWDK4skf0YAh4EDEdD2" | |
| crossorigin="anonymous"></script> | |
| <script src="https://unpkg.com/[email protected]/babel.min.js" charset="utf-8"></script> | |
| <script src="https://unpkg.com/[email protected]/dist/redux.min.js"></script> | |
| <script src="https://unpkg.com/[email protected]/dist/react-redux.min.js"></script> | |
| <style> | |
| .error { | |
| border: 1px solid #c00; | |
| } | |
| .valid { | |
| border: 1px solid #0c0; | |
| } | |
| </style> | |
| <script type="text/babel"> | |
| /** | |
| * Render Prop pattern | |
| * A component that has a property that is a function used to render | |
| * https://github.com/facebook/react/pull/10741 | |
| */ | |
| const ValidatedHello = ({children, val}) => { | |
| return (children(val > 10)); | |
| }; | |
| const Hello = () => <h1>Hello, World!</h1>; | |
| const App = ({val}) => <ValidatedHello val={val}> | |
| { | |
| (isValid) => | |
| <div className={isValid ? 'valid' : 'error'}><Hello /></div> | |
| } | |
| </ValidatedHello> | |
| ReactDOM.render(<App val={20} />, document.getElementById('app')); | |
| /** | |
| * Higher Order Component pattern | |
| * Is a function that accepts a Component as an argument and returns a Component. | |
| */ | |
| // const withValidation = (WrappedComponent) => ({val}) => { | |
| // return ( | |
| // <WrappedComponent isValid={val > 10} /> | |
| // ); | |
| // } | |
| // const Hello = ({isValid}) => { | |
| // return (<div className={isValid ? 'valid' : 'error'}><h1>Hello, World!</h1></div>); | |
| // } | |
| // const ValidatedHello = withValidation(Hello); | |
| // const App = ({val}) => <ValidatedHello val={val} />; | |
| // ReactDOM.render(<App val={2} />, document.getElementById('app')); | |
| </script> | |
| </body> | |
| </html> |
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