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[Home](./index.md) &gt; [rc-js-util](./rc-js-util.md) &gt; [Vec3](./rc-js-util.vec3.md) &gt; [castToBaseType](./rc-js-util.vec3.casttobasetype.md)

## Vec3.castToBaseType() method

Although the typed array tuples extend a typed array, they are not structurally compatible. This function returns the argument passed without modification but cast as the underlying storage type, e.g. Float32Array.

**Signature:**

```typescript
castToBaseType(): TArray;
```
**Returns:**

TArray