Creating custom function in React component

Question

I have a React component

export default class Archive extends React.Component { 
   ...
}

componentDidMount and onClick

Answer 1

Another way:

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 ;
  }
}

In this format you don't need to use bind