title: no org-babel-execute function for javascript in emacs org-babel
body: <p>I have added the following code to my init file. But I still get the error.</p>
  
  <pre><code>(org-babel-do-load-languages
        'org-babel-load-languages
        '((js . t)))
  </code></pre>
  
  <p>I noticed in <a href="https://orgmode.org/worg/org-contrib/babel/languages.html" rel="nofollow noreferrer">Babel supported Languages</a>, it says javascript requires <a href="https://nodejs.org/en/" rel="nofollow noreferrer">node.js</a>. So I download node.js and added the folder to my Environment PATH. However, I got the same error.</p>
  
  <p>So how could I run javascript in org-babel?</p>