How to get file size using HTML5 FileSystem interface?

Question

How to find out the size of a file located in a local file system represented through the HTML5 API?

I expect something like that,

fileSystem.root.getFile(path, { create: false }, function (fileEntry) { // fileEntry.size - ???????? }); 

... to be accessible, but did not find anything like it.

Answer 1

You need to call:

 fileEntry.getMetadata(function(metadata) { alert(metadata.size); // or do something more useful with it... }); 

See File System Specifications Input Interface and Metadata Interface for details.