Please note, this is a STATIC archive of website developer.mozilla.org from 03 Nov 2016, cach3.com does not collect or store any user information, there is no "phishing" involved.

LockedFile.getMetadata()

この記事は技術レビューを必要としています。ぜひご協力ください

この記事はまだボランティアによって 日本語 に翻訳されていません。ぜひ MDN に参加して翻訳を手伝ってください!

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

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 where false means it is not expected. Note that if the key is undefined, it is considered as if it were true. The following metadata are supported:
  • size : will provide the size of the file
  • lastModified : 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 number
  • lastModified : a Date object

Specifications

Specification Status Comment
FileSystem API Editor's Draft Draft proposal

See also

ドキュメントのタグと貢献者

 このページの貢献者: fscholz, kscarfone, Jeremie
 最終更新者: fscholz,