# sm.terrainData.exists

Check if terrain data exists for this world.

**Kind:** Function

**Environments:** Terrain

## Terrain

``` { .lua .api-signature }
sm.terrainData.exists(  )
```

[Open the full Terrain reference](../Terrain-Script-Environment/Static-Functions/sm.terrainData.md#exists)

**Returns:**

| Type | Description |
| --- | --- |
| boolean | True if data exists. False otherwise. |