---
product: "AG Studio"
title: "Studio Lifecycle"
description: "This section covers some common lifecycle events that are raised after Studio initialisation, data is ready, and before Studio is destroyed."
framework: vue
version: "3.0.0"
related:
    - title: "Overview"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-interface/"
    - title: "Properties Reference"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-properties/"
    - title: "Events Reference"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-events/"
    - title: "API Reference"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-api/"
    - title: "Theme Reference"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-theme/"
    - title: "State Reference"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/studio-state/"
    - title: "Registry Type"
      url: "https://www.ag-grid.com/studio/archive/3.0.0/vue/registry-type/"
llms: "https://www.ag-grid.com/studio/archive/3.0.0/llms.txt"
---

# Studio Lifecycle

This section covers some common lifecycle events that are raised after Studio initialisation, data is ready, and before Studio is destroyed.

> **Note**
>
> The events on this page are listed in the order they are raised.

## API Ready

The `apiReady` event fires upon Studio initialisation but before the data may be ready or rendering complete.

**Common Uses**

- Saving a reference to the API

## Studio Ready

The `studioReady` event fires when the Data Engine has been initialised and so data is ready. Rendering may not have completed.

## State Updated

The `stateUpdated` event fires every time Studio's state changes.

## Studio Pre-Destroyed

The `studioPreDestroyed` event fires just before Studio is destroyed and is removed from the DOM.

**Common Uses**

- Clean up resources.
- Save Studio state.
- Disconnect other libraries.

The [Studio State Example](https://www.ag-grid.com/studio/archive/3.0.0/vue/state/#saving-and-restoring-state) demonstrates how `studioPreDestroyed` can be used to save and restore Studio state.