title: Multi-line alert in Javascript
body: <p>This code </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>alert("Hello again! This is how we" + "\n" + "add line breaks to an alert box!");</code></pre>
  </div>
  </div>
  </p>
  
  <p>doesn't work.
  Firefox JavaScript console names error as "unterminated string literal" and points on " symbol before \n.
  I want to fire an alert with multi-line text. No jQuery please.</p>