Pinia क्या है

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
  <script src="https://unpkg.com/[email protected]/lib/index.iife.js"></script>
  <script src="https://unpkg.com/pinia@2/dist/pinia.iife.js"></script>
</head>
<body>
<div id="app">
  <p>Header sees: {{ counter.count }}</p>
  <p>Footer sees: {{ counter.count }}</p>
  <button @click="counter.count++">Increment shared count</button>
</div>
<script>
  const useCounter = Pinia.defineStore("counter", { state: () => ({ count: 0 }) });
  const app = Vue.createApp({ setup() { return { counter: useCounter() }; } });
  app.use(Pinia.createPinia());
  app.mount("#app");
  document.querySelector("button").click();
  Vue.nextTick(() => console.log(document.querySelector("#app").textContent.replace(/\s+/g, " ").trim()));
</script>
</body>
</html>

<!-- Output:
Rendered: Header sees: 1Footer sees: 1Increment shared count
console: Header sees: 1Footer sees: 1Increment shared count
-->