Web/API/Metadata/size

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 read-only size property of the Metadata interface specifies the size, in bytes, of the referenced file or other file system object on disk.

Syntax

var size = Metadata.size;

Value

A number indicating the size of the file in bytes.

Example

This example checks the size of a log file and removes it if it's larger than a megabyte.

workingDirectory.getFile("log/important.log", {}, function(fileEntry) {
  fileEntry.getMetadata(function(metadata) {
    if (metadata.size > 1048576) {
      fileEntry.remove(function() {
        /* log file removed; do something clever here */
      });
    }
  });
}, handleError);

This API has no official W3C or WHATWG specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`size` Experimental'Non-standard'	Chrome Full support 13	Edge Full support ≤79	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android Full support Yes	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android Full support Yes

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.': Non-standard. Expect poor cross-browser support.