functional-component-example.js

const LatestPostsComponent = props => {
  const postPreviews = renderPostPreviews(props.posts);

  return (
    <section>
      <div><h1>Latest posts</h1></div>
      <div>
        { postPreviews }
      </div>
    </section>
  );
};

const renderPostPreviews = posts => (
  posts.map(post => this.renderPostPreview(post))
);

const renderPostPreview = post => (
  <article>
    <h3><a href={`/post/${post.slug}`}>{post.title}</a></h3>
    <time pubdate><em>{post.posted}</em></time>
    <div>
      <span>{post.blurb}</span>
      <a href={`/post/${post.slug}`}>Read more...</a>
    </div>
  </article>
);