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Project: a social news web page

You know now enough JavaScript and DOM to go ahead and create interactive web pages for real!

Objective

This project builds upon the social news program you created previously. This time, the objective is to make a social news web page.

The general idea and page layout for this project are inspired by the Discover Meteor book's example application.

Functional requirements

  • A link is defined by its title, its URL and its author (submitter).
  • If a new link URL does not start with "http://" or "https://", "http://" is automatically added at its beginning.
  • The web page displays a list of at least three already existing links.
  • A button exists for the user to submit a new link. When clicked, a form appears before the link list to input the new link properties (author, title and URL).
  • In this form, all link fields are mandatory.
  • When the new link is validated by the user, it is displayed at the top of the link list, replacing the form. A message indicates the success of the operation, then disappears after two seconds.

Technical requirements

  • You should reuse any useful code from the previous project.
  • All your code should be correctly indented.
  • Names should be wisely chosen and adhere to the camelCase convention.
  • Code duplication should be avoided.

Starter code

Because this is first and foremost a JavaScript project, here is the complete HTML/CSS code of the web page. It is also online as a CodePen.

This web page uses the Bootstrap framework to improve presentation and make it responsive. However, Bootstrap knowledge is not mandatory to achieve the desired result. You can pretty much ignore it and code ahead.

<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <!-- Latest compiled and minified CSS -->
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <link href="../css/publink.css" rel="stylesheet" type="text/css">
  <title>A social news web page</title>
</head>

<body>
  <div class="container">

    <!-- Bootstrap navigation bar -->
    <nav class="navbar navbar-default">
      <div class="container-fluid">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
        </button>
          <a class="navbar-brand" href="#"><span class="glyphicon glyphicon-link" aria-hidden="true"></span> PubLink</a>
        </div>
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
          <button type="button" id="submitButton" class="btn btn-default navbar-btn">Submit</button>
          <p class="navbar-text navbar-right">A social news web page built with ❤ and JavaScript</p>
        </div>
      </div>
    </nav>

    <div id="content">
      <!-- Dynamic content goes here -->
    </div>

  </div>

  <!-- JavaScript code goes into this file -->
  <script src="../js/publink.js"></script>

  <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
  <!-- Include all compiled plugins (below), or include individual files as needed -->
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>

</html>
body {
  background-color: #eee;
}

/* Main link element (<div> tag) */
.link {
  background: white;
  padding: 10px;
  margin-bottom: 10px;
}

/* Link title (<a> tag) */
.linkTitle {
  color: #428bca;
  text-decoration: none;
  margin-right: 5px;
}
.linkTitle:hover {
  text-decoration: none;
}

/* Link URL (<span> tag) */
.linkUrl {
  font-weight: normal;
  font-size: 80%;
}

/* Link headline containing title & URL (<h4> tag) */
.linkHeadline {
  margin: 0;
}

/* Link author (<span> tag) */
.linkAuthor {
  font-weight: normal;
  font-size: 80%;
}

.linkForm {
  margin-bottom: 20px;
}

Expected result

Here are a few screenshots of the expected result.

Link list

Submitting a new link

Success message after adding a new link

Updated link list