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FileSystemEntry: fullPath property

The read-only fullPath property of the FileSystemEntry interface returns a string specifying the full, absolute path from the file system's root to the file represented by the entry.

This can also be thought of as a path which is relative to the root directory, with a "/" prepended to it to make it absolute.

Value

A string indicating the entry's full path.

Examples

This example shows a function which is called with a file system; it then gets a FileSystemFileEntry for a file named data.json and returns its full path.

js

function gotFileSystem(fs) {
  let path = "";

  fs.root.getFile(
    "data.json",
    { create: true, exclusive: true },
    (entry) => {
      path = fullPath;
    },
    handleError(error),
  );

  return path;
}

Obviously, this is somewhat contrived, since we know that the file's full path is "/data.json", having just looked it up ourselves, but the concept holds up for scenarios in which you don't know it.

Specifications

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
fullPath 8 79 50 No No 11.1 ≤37 18 50 14 11.3 1.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry/fullPath