# Static Properties
Here, `static properties` refer to the `first-level properties` attached to the `constructor`, which are rarely used.
## `instances`
Returns an array of all player instances. This property can be useful when you need to manage multiple players simultaneously.
▶ Run Code
```js
console.info([...Artplayer.instances]);
var art = new Artplayer({
container: '.artplayer-app',
url: '/assets/sample/video.mp4',
});
console.info([...Artplayer.instances]);
```
## `version`
Returns the version information of the player.
▶ Run Code
```js
console.info(Artplayer.version);
```
## `env`
Returns the environment variables of the player.
▶ Run Code
```js
console.info(Artplayer.env);
```
## `build`
Returns the build timestamp of the player.
▶ Run Code
```js
console.info(Artplayer.build);
```
## `config`
Returns the default configuration for videos.
▶ Run Code
```js
console.info(Artplayer.config);
```
## `utils`
Returns the collection of utility functions for the player.
▶ Run Code
```js
console.info(Artplayer.utils);
```
:::warning For all utility functions, please refer to the following address:
[artplayer/types/utils.d.ts](https://github.com/zhw2590582/ArtPlayer/blob/master/packages/artplayer/types/utils.d.ts)
:::
## `scheme`
Returns the validation schema for player options.
▶ Run Code
```js
console.info(Artplayer.scheme);
```
## `Emitter`
Returns the constructor of the event emitter.
▶ Run Code
```js
console.info(Artplayer.Emitter);
```
## `validator`
Returns the validation function for options.
▶ Run Code
```js
console.info(Artplayer.validator);
```
## `kindOf`
Returns the type detection utility function.
▶ Run Code
```js
console.info(Artplayer.kindOf);
```
## `html`
Returns the `html` string required by the player.
▶ Run Code
```js
console.info(Artplayer.html);
```
## `option`
Returns the default options of the player.
▶ Run Code
```js
console.info(Artplayer.option);
```