Answers for "how to write function in class component react"

function component in react

// function component in react
import React from 'react';

const FunctionComponent = function() {
  return (
    <div>
    <h1>React Function Component</h1>
    </div>
  )
}

export default FunctionComponent;

function inside a class component react

export default class Archive extends React.Component { 

    saySomething(something) {
        console.log(something);
    }

    handleClick(e) {
        this.saySomething("element clicked");
    }

    componentDidMount() {
        this.saySomething("component did mount");
    }

    render() {
        return <button onClick={this.handleClick.bind(this)} value="Click me" />;
    }
}