init source

composables/useCounter.ts

@@ -0,0 +1,25 @@
+export const useCounter = () => {
+  const count = ref(0);
+
+  const increment = () => {
+    count.value++;
+  };
+
+  const decrement = () => {
+    count.value--;
+  };
+
+  const reset = () => {
+    count.value = 0;
+  };
+
+  const double = computed(() => count.value * 2);
+
+  return {
+    count: readonly(count),
+    increment,
+    decrement,
+    reset,
+    double,
+  };
+};