how do you add attributes to script tag in jade e.g. async defer

Question

I needed to add async and defer attributes according to the docs for adding a google plus one button. How do I do this in jade?

<script src="https://apis.google.com/js/platform.js" async defer></script>

Answer 1

This worked for me:

script(async, defer, src='https://apis.google.com/js/platform.js')