component with state with {}

Header.js

import React from 'react';

export class Header extends React.Component {
  render() {

    // user = {
    //   name: 'Anna',
    //   hobbies: 'Gold'
    // }

    let content =
      <p>
        content from val
      </p>

    if (1) {
      content =
        <p>
          changed content
        </p>
    }

    return (
          <h1>
            {this.props.age}<br/>
            Hello<br/>
            {1+1}<br/>
            {content}<br/>
            {'hello'}<br/>
            { 5===2 ? 'yes': 'no' }
          </h1>
    );
  }
}