const user = renderedUser || (
  <div>
    <User name={this.state.user.name} age={this.state.user.age} />
  </div>
);

const user2 =
  renderedUser ||
  (shouldRenderUser && (
    <div>
      <User name={this.state.user.name} age={this.state.user.age} />
    </div>
  ));

const avatar = hasAvatar && <Gravatar user={author} size={size} />;

const avatar2 = (hasAvatar || showPlaceholder) && (
  <Gravatar user={author} size={size} />
);