Re: IndexedDB, Blobs and partial Blobs - Large Files

On Tue, Dec 3, 2013 at 11:55 AM, Joshua Bell <> wrote:
> On Tue, Dec 3, 2013 at 4:07 AM, Aymeric Vitte <>
> wrote:
>> I am aware of [1], and really waiting for this to be available.
>> So you are suggesting something like {id:file_id, chunk1:chunk1,
>> chunk2:chunk2, etc}?
> No, because you'd still have to fetch, modify, and re-insert the value each
> time. Hopefully implementations store blobs by reference so that doesn't
> involve huge data copies, at least.

That's what the Gecko implementation does. When reading a Blob from
IndexedDB, and then store the same Blob again, that will not copy any
of the Blob data, but simply just create another reference to the
already existing data.

/ Jonas

Received on Tuesday, 3 December 2013 21:13:32 UTC