hugo-coder/layouts/partials/analytics/googletagmanager.html

<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id={{ $.Site.Params.googleTagManager.id }}"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', '{{ $.Site.Params.googleTagManager.id }}');
</script>