11. Sanitizing the NYT API Data

HTML

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<div id="app">
  <span id="placeholder"></span>
</div>

JavaScript

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/* Before rendering API data into the DOM as markup, 
sanitize it to protect yourself from any malicious code that might get sent back. */

const appOutput = document.querySelector('#app');
const apiKey = 'T6l8P8ICK6XZr1u3OeA0qoGUFrEcSM5R';
const sections = ['Technology', 'Science', 'Magazine'];
const articleNum = 3;

const render = function (articles, section) {
  appOutput.innerHTML += '<h3 class="category">' + section + ':' + '</h3>' + articles.map(function (article) {
    return (`
            <div class="container">
              <ul class="title">
              <li>${sanitizeHTML(article.url)}</li>
              <a class="link" href="${sanitizeHTML(article.url)}" target="_blank">Read more</a>
              </ul>
            </div>
            <br>
            `);
  }).join('')
};

const getLastNStories = function (articles) {
  return articles.slice(0, articleNum)
}

const getStories = function (section) {
  fetch(`https://api.nytimes.com/svc/topstories/v2/${section}.json?api-key=${apiKey}`).then(
    function (response) {
      if (response.ok) {
        return response.json();
      } else {
        return Promise.reject(response);
      };
    }).then(function (data) {
    const lastNStories = getLastNStories(data.results);
    render(lastNStories, section);
  }).catch(response => {
    console.log("something went wrong", response);
    appOutput.textContent = "Something went wrong...";
  });
};

sections.forEach(function (section) {
  getStories(section);
});