[Home](./index.md) > [@firebase/firestore](./firestore.md) > [/](./firestore_.md) > [LoadBundleTaskProgress](./firestore_.loadbundletaskprogress.md) > [totalBytes](./firestore_.loadbundletaskprogress.totalbytes.md) ## LoadBundleTaskProgress.totalBytes property How many bytes are in the bundle being loaded. Signature: ```typescript totalBytes: number; ```