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This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.


The mode property provides the read/write status of the LockedFile file.


var mode = instanceOfLockedFile.mode


A string, one of readonly or readwrite.


Specification Status Comment
FileSystem API Editor's Draft Draft Proposal.

See also

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Contributors to this page: Jeremie, fscholz, kscarfone
Last updated by: Jeremie,