Determine if File or Directory in iOS

app.js

function isDir(path) {
    var file = Ti.Filesystem.getFile(path);
 
    if ( !file.exists() ) {
        return false;
    }
 
    var nativePath = file.nativePath; 
    Ti.API.info(nativePath);
 
    return nativePath.lastIndexOf('/') == nativePath.length - 1;
}
 
Ti.API.info( isDir( Ti.Filesystem.getResourcesDirectory() ) );