[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [Bytes](./firestore_lite.bytes.md) > [toUint8Array](./firestore_lite.bytes.touint8array.md) ## Bytes.toUint8Array() method Returns the underlying bytes in a new `Uint8Array`. Signature: ```typescript toUint8Array(): Uint8Array; ``` Returns: Uint8Array The Uint8Array created from the `Bytes` object.