1 files changed, 9 insertions, 0 deletions
diff --git a/frontend-vanilla/src/counter.ts b/frontend-vanilla/src/counter.ts
new file mode 100644
index 0000000..09e5afd
--- /dev/null
+++ b/frontend-vanilla/src/counter.ts
@@ -0,0 +1,9 @@
+export function setupCounter(element: HTMLButtonElement) {
+  let counter = 0
+  const setCounter = (count: number) => {
+    counter = count
+    element.innerHTML = `count is ${counter}`
+  }
+  element.addEventListener('click', () => setCounter(counter + 1))
+  setCounter(0)
+}