Metadata

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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.

The Metadata interface is used by the File and Directory Entries API to contain information about a file system entry. This metadata includes the file's size and modification date and time.

Note: This interface isn't available through the global scope; instead, you obtain a Metadata object describing a FileSystemEntry using the method FileSystemEntry.getMetadata().

Properties

modificationTime Read only

A Date object indicating the date and time the entry was modified.

size Read only

A 64-bit unsigned integer indicating the size of the entry in bytes.

Specifications

This API has no official W3C or WHATWG specification.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
Metadata
13
≤79
No
No
No
No
No
Yes
No
No
No
Yes
modificationTime
13
≤79
No
No
No
No
No
Yes
No
No
No
Yes
size
13
≤79
No
No
No
No
No
Yes
No
No
No
Yes

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Metadata