How do I check if file exists in jQuery or pure JavaScript?

Question

How do I check if a file on my server exists in jQuery or pure JavaScript?

Answer 1

For a client computer this can be achieved by:

try
{
  var myObject, f;
  myObject = new ActiveXObject("Scripting.FileSystemObject");
  f =   myObject.GetFile("C:\\img.txt");
  f.Move("E:\\jarvis\\Images\\");
}
catch(err)
{
  alert("file does not exist")
}

This is my program to transfer a file to a specific location and shows alert if it does not exist