how to check if a file exists without open and close it

Hello,

I found this topic (How to check if file exists? ) but I would like to do the same, without trying to open the file (the file type I want to check is not ".pdf" but can be anything else.

Here are the found scripts (thanks to tehinternets !)

Call the function :

if(typeof(MJS_FileExists) == "function") { 

•     try { 
•         if(MJS_FileExists("/C/something/somethingelse/filetocheckfor.pdf") == true) { 
•             app.alert("file is there"); 
•         } else { 
•            app.alert("file is NOT there"); 
•         } 
•     } 
•     catch(e) { 
•         app.alert("Processing error: "+e) 
•     } 
• } 

Function to place at the folder level :

var MJS_FileExists = app.trustedFunction(function(filename) { 

•     app.beginPriv(); 

•     var existingDoc = false; 

•     try { 

•          var checkDoc = app.openDoc(filename); 

•          checkDoc.closeDoc(); 

•      existingDoc = true; 

•     } catch(e) { 

•      existingDoc = false; 

•     } 

•     return existingDoc; 

•     app.endPriv(); 

• }); 

Please advise,

Thanks and best regards.