Cleanup

app/javascript/contact_us_form.js

@@ -0,0 +1,12 @@
+document.addEventListener("turbolinks:load", function () {
+    var form = document.getElementById('contact-us-form');
+    form.addEventListener('submit', function (e) {
+        document.getElementById("contact-us-form-submit-button").classList.add('is-hidden');
+        document.getElementById("contact-us-form-loading-state").classList.remove('is-hidden');
+    });
+
+    form.addEventListener('tinyforms:submitted', function(e) {
+        form.classList.add('is-hidden');
+        document.getElementById("contact-us-form-success-message").classList.remove('is-hidden');
+    })
+});

app/javascript/packs/application.js

@@ -14,6 +14,7 @@ require('demo');
 require('backend_typed');
 require('tabs');
 require('prism');
+require('contact_us_form');
 
 // Uncomment to copy all static images under ../images to the output folder and reference
 // them with the image_pack_tag helper in views (e.g <%= image_pack_tag 'rails.png' %>)