Function to check whether an object is a File object and whether the file exists. Useful for parsing the results of the Folder method .getFiles().

The function isFile() is located in the file file.jsxinc.

Usage

To check whether a resource is a file object:

var file = new File("C:/myfile.txt");
if(isFile(file))
   //Do something is this is a file object

To check whether the resource is a file object and that the file exists on the file system:

var file = new File("C:/myfile.txt");
if(isFile(file, true))
   //Do something is this is a file object and if the file exists on the file system.

Parameters

Parameter	Data type	Required	Description
file	All		The object to check. You can parse any kind of object, string or variable to this function.
mustexist	Boolean		If set to true the function also checks that the file exists on the file system.

Return values