59 lines
1.2 KiB
Markdown
59 lines
1.2 KiB
Markdown
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---
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title: Render Props Component
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---
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## Render Props Component
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Render props is an advanced React pattern, yet so simple!
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### Example
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This is an example on how you can use render prop for a toggle functionality.
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```jsx
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import React, { PureComponent } from "react";
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class Toggle extends PureComponent {
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state = {
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on: false
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};
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toggle = () => {
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this.setState({
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on: !this.state.on
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});
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};
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render() {
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const { children } = this.props;
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return children({
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on: this.state.on,
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toggle: this.toggle
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});
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}
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}
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export default Toggle;
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```
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This Toggle component will return it's children `state.on` and the function toggle. Which can be used in it's child components.
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This Toggle can be used as follows:
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```jsx
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<Toggle>
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{({ on, toggle }) => (
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<Fragment>
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<button onClick={toggle}>Show / Hide</button>
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{on && <h1>I can be toggled on or off!</h1>}
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</Fragment>
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)}
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</Toggle>
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```
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As you can see, the toggle functionality can be used by it's child Button to toggle some content. if on is true the h1-tag will get rendered otherwise not.
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## Other Resources
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* [React docs: Render props](https://reactjs.org/docs/render-props.html)
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