How to rewrite class component to React Functional? - reactjs

Question

I am new to React and I am learning the basics, but right now I need to rewrite a Class component in order to use React Hooks. So I guess I need to rewrite it to a functional component.
I already tried changing some of the things but in the end everything breaks and I will get a 'props not defined' error.
This is the code:
class Main extends React.Component {
render() {
let close = (
<div
className="close"
onClick={() => {
this.props.onCloseArticle()
}}
></div>
)
return (
<div
ref={this.props.setWrapperRef}
id="main"
style={this.props.timeout ? { display: 'flex' } : { display: 'none' }}
>
<article
id="vision"
className={`${this.props.article === 'vision' ? 'active' : ''} ${
this.props.articleTimeout ? 'timeout' : ''
}`}
style={{ display: 'none' }}
>
<h2 className="major">Vision</h2>
<span className="image main">
<img src={pic01} alt="" />
</span>
<p>
Adipiscing magna sed dolor elit. Praesent eleifend dignissim arcu,
at eleifend sapien imperdiet ac. Aliquam erat volutpat. Praesent
urna nisi, fringila lorem et vehicula lacinia quam. Integer
sollicitudin mauris nec lorem luctus ultrices.
</p>
<p>
Nullam et orci eu lorem consequat tincidunt vivamus et sagittis
libero. Mauris aliquet magna magna sed nunc rhoncus pharetra.
Pellentesque condimentum sem. In efficitur ligula tate urna.
Maecenas laoreet massa vel lacinia pellentesque lorem ipsum dolor.
Nullam et orci eu lorem consequat tincidunt. Vivamus et sagittis
libero. Mauris aliquet magna magna sed nunc rhoncus amet feugiat
tempus.
</p>
{close}
</article>
</div>
)
}
}
Main.propTypes = {
route: PropTypes.object,
article: PropTypes.string,
articleTimeout: PropTypes.bool,
onCloseArticle: PropTypes.func,
timeout: PropTypes.bool,
setWrapperRef: PropTypes.func.isRequired,
}
export default Main
What I did is changing class main to const Main = () => {, remove the render() but after that I am confused..

Answer 1

This should do the work
Replace class by const
Remove the render lifecycle method used in class components
Add the props in the parameter of the function
Remove all the this
const Main = (props) => {
let close = (
<div
className="close"
onClick={() => {
props.onCloseArticle()
}}
></div>
)
return (
<div
ref={props.setWrapperRef}
id="main"
style={props.timeout ? { display: 'flex' } : { display: 'none' }}
>
<article
id="vision"
className={`${props.article === 'vision' ? 'active' : ''} ${
props.articleTimeout ? 'timeout' : ''
}`}
style={{ display: 'none' }}
>
<h2 className="major">Vision</h2>
<span className="image main">
<img src={pic01} alt="" />
</span>
<p>
Adipiscing magna sed dolor elit. Praesent eleifend dignissim arcu,
at eleifend sapien imperdiet ac. Aliquam erat volutpat. Praesent
urna nisi, fringila lorem et vehicula lacinia quam. Integer
sollicitudin mauris nec lorem luctus ultrices.
</p>
<p>
Nullam et orci eu lorem consequat tincidunt vivamus et sagittis
libero. Mauris aliquet magna magna sed nunc rhoncus pharetra.
Pellentesque condimentum sem. In efficitur ligula tate urna.
Maecenas laoreet massa vel lacinia pellentesque lorem ipsum dolor.
Nullam et orci eu lorem consequat tincidunt. Vivamus et sagittis
libero. Mauris aliquet magna magna sed nunc rhoncus amet feugiat
tempus.
</p>
{close}
</article>
</div>
)
}