conditional.js

let i = 0;

class UsesConditional extends React.Component {
  render() {
    i++;
    return (
      <div>
        <Conditional if={i % 2}>
          <span>Show Me</span>
        </Conditional>
      </div>
    )
  }
}

ReactDOM.render(
  <UsesConditional />,
  document.getElementById('container')
);

ternary.js

let i = 0;

class UsesTernary extends React.Component {
  render() {
    i++;
    return (
      <div>
        {
          i % 2 ?
          <span>Show Me</span> :
          null
        }
      </div>
    )
  }
}

ReactDOM.render(
  <UsesTernary />,
  document.getElementById('container')
);