What is wrong in React code?

Question

React

I wanted to build a class component without using a constructor and props using modern syntax. I can't figure out the reason for the error. Console complains about "=" sign after "state"

import React, {Component} from 'react';

class Forms extends Component {
    state = {}

  changeForm = () => {}

  render() {
      return (
          <div></div>
      )
  }
}

export default Forms