First Commit

public/js/app.js

@@ -0,0 +1,34 @@
+(function () {
+    function csrfToken() {
+        var meta = document.querySelector('meta[name="csrf-token"]');
+        return meta ? meta.getAttribute('content') : '';
+    }
+
+    function post(url) {
+        return fetch(url, {
+            method: 'POST',
+            headers: {
+                'X-CSRF-TOKEN': csrfToken(),
+                'Accept': 'application/json',
+            },
+        });
+    }
+
+    document.addEventListener('click', function (event) {
+        var favoriteBtn = event.target.closest('[data-favorite-url]');
+        if (favoriteBtn) {
+            event.preventDefault();
+            post(favoriteBtn.getAttribute('data-favorite-url')).then(function (res) {
+                return res.json();
+            }).then(function (data) {
+                favoriteBtn.classList.toggle('is-favorite', !!data.is_favorite);
+            });
+            return;
+        }
+
+        var deleteForm = event.target.closest('[data-confirm]');
+        if (deleteForm && !confirm(deleteForm.getAttribute('data-confirm'))) {
+            event.preventDefault();
+        }
+    });
+})();