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Metadata

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.

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

The Metadata interface contains 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().

Instance properties

modificationTime Read only Experimental Non-standard

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

size Read only Experimental Non-standard

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

Specifications

This feature has been removed from all specification and is not in the process of being standardized.

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 18 No No No 1.0
modificationTime 13 79 No No No No No 18 No No No 1.0
size 13 79 No No No No No 18 No No No 1.0

See also

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