all local

js/components.js

@@ -0,0 +1,14 @@
+// Komponenty HTML loader
+function loadComponent(path, replaceMap = {}) {
+  return fetch(path)
+    .then(r => r.text())
+    .then(html => {
+      Object.entries(replaceMap).forEach(([key, val]) => {
+        html = html.replaceAll(key, val);
+      });
+      return html;
+    });
+}
+
+// Przykład użycia:
+// loadComponent('components/header.html', {'{TITLE}': 'Tytuł', '{SUBTITLE}': 'Podtytuł'}).then(html => ...)