Test7

index.html

<div id="root"></div>

script.babel

function formatDate(date) {
  return date.toLocaleDateString();
}

// avatar component
function Avatar(props) {
  return <img className="Avatar"
             src={props.user.avatarUrl}
             alt={props.user.name} />;
}

function UserInfo(props) {
  return (
    <div className="UserInfo">
      <Avatar user={props.user}/>
      <div className="UserInfo-name">
        {props.user.name}
      </div>
    </div>
  );
}

function Comment(props) {
  return (
    <div className="Comment">
      <UserInfo user={props.author}/>
      <div className="Comment-text">
        {props.text}
      </div>
      <div className="Comment-date">
        {formatDate(props.date)}
      </div>
    </div>
  );
}

const comment = {
  date: new Date(),
  text: 'I hope you enjoy learning React!',
  author: {
    name: 'Hello Kitty',
    avatarUrl: 'http://placekitten.com/g/64/64'
  }
};

ReactDOM.render(
  <Comment
    date={comment.date}
    text={comment.text}
    author={comment.author} />,
  document.getElementById("root")
);

scripts

<script src="https://unpkg.com/react/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom/umd/react-dom.development.js"></script>

test7.markdown

Test7

Learn the fundamentals of React, including simple and class components, state, props, and submitting form data.

Extracting Components

A Pen by 你银子掉了 on CodePen.