Having a React functional component return the html to be rendered is the pattern of React functional components. It seems like Vladislav’s initial bug report is still correct. A functional component’s return value is equivalent to the render function in the traditional React Component class.
See step 1 here: https://www.digitalocean.com/community/tutorials/five-ways-to-convert-react-class-components-to-functional-components-with-react-hooks#step-1-—-understanding-a-class-without-state-or-lifecycle-methods
The cognitive complexity calculation should result in the same number for the ExampleClassComponent.js and the ExampleFunctionalComponent.js in the link I posted above. I’ll add the JavaScript here for posterity:
ExampleClassComponent.js
import React, { Component } from 'react';
class App extends Component {
alertName = () => {
alert('John Doe');
};
render() {
return (
<div>
<h3>This is a Class Component</h3>
<button onClick={this.alertName}>
Alert
</button>
</div>
);
}
};
export default App;
ExampleFunctionalComponent.js
import React from 'react';
function App() {
const alertName = () => {
alert('John Doe');
};
return (
<div>
<h3>This is a Functional Component</h3>
<button onClick={alertName}>
Alert
</button>
</div>
);
};
export default App;