Fast React

Lets build Avatar component

	class Avatar extends React.Component {
	render() {
	return <img src={this.props.url} />;
	}
	}

view raw 01-fast-react.js hosted with ❤ by GitHub

You should change component to function

	const Avatar = (props) => {
	return <img src={props.url} />;
	}

view raw 02-fast-react.js hosted with ❤ by GitHub

You don't need full component, you just need to render image!

Change your code

	<Avatar url={avatarUrl} />
	{Avatar({ url: avatarUrl })}

view raw 03-fast-react.js hosted with ❤ by GitHub

It give's you 45 % speed improvements!

https://medium.com/