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JavaScript DOM Scripting By Example Improving the Application Code Fix Function that Should be Creating Links

Posted by William Ray Noble
William Ray Noble
22,190 Points

I'm not going to lie, I'm not sure where to start.

Hello, this challenge as my trying to make the links underneath the programming language headings visible. I've already tried looking this challenge up in the community forum but the content of the challenge itself appears to have changed. TIA.

app.js 
const languages = ['Python', 'JavaScript', 'PHP', 'Ruby', 'Java', 'C'];
const section = document.getElementsByTagName('section')[0];

// Accepts a language name and returns a wikipedia link
function linkify(language) {
  const a = document.createElement('a');
  const url = 'https://wikipedia.org/wiki/' + language + '_(programming_language)';
  a.href = url;
  return a;
}

// Creates and returns a div
function createDiv(language) {
  const div = document.createElement('div');
  const h2 = document.createElement('h2');
  const p = document.createElement('p');
  const link = linkify(language);

  h2.textContent = language;
  p.textContent = 'Information about ' + language;
  link.appendChild(p);

  div.appendChild(h2);

  // Your code below


  // end

  return div;
}

for (let i = 0; i < languages.length; i += 1) {
  let div = createDiv(languages[i]);

  section.appendChild(div);
}
index.html 
<!DOCTYPE html>
<html>
<head>
  <title>Programming Languages</title>
  <style>
    body {
      font-family: sans-serif;
    }
  </style>
</head>
<body>
  <h1>Programming Languages</h1>
  <section></section>
  <script src="app.js"></script>
</body>
</html>

1 Answer

Zimri Leijen
Zimri Leijen
11,835 Points
Zimri Leijen
Zimri Leijen
11,835 Points

Look to where you are appending things too.

The div is appended to the section, which is already part of the html.

The link however is newly generated, and is not appended to any element that is already part of the original html.

It needs a place within the original html to be appended to, otherwise javascript won't know where you want it to appear.