LockedFile.getMetadata()
Non-standard
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.
Summary
The getMetadata
method allows to retrieve some metadata about the locked file.
Syntax
JavaScript
Copy Code
var request = instanceOfLockedFile.getMetadata(param);
Parameters
param
Optional- An object used to request specific metadata. Each key is a boolean where
true
means the metadata is expected and wherefalse
means it is not expected. Note that if the key isundefined
, it is considered as if it weretrue
. The following metadata are supported:
size
: will provide the size of the filelastModified
: will provide the date when the file was last modified
Return
A FileRequest
object. In case of success, the request's result
is an object with the metadata requested through the param object. They have the following format:
size
: a numberlastModified
: aDate
object
Specifications
Specification | Status | Comment |
---|---|---|
FileSystem API | Editor's Draft | Draft proposal |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/lockedfile/getmetadata