The suffixes property obtains a string listing the possible file suffixes or filename extensions for the MIME type.
<html> <head> <title> Using the suffixes property of the MimeType object</title> </head> <body> <script language="javascript"> <!--- for (i=0; i < 3; i++) { document.write("MimeType suffix " + i + " : "); document.writeln(navigator.mimeTypes[i].suffixes); document.write("<br>"); } --> </script> </body> </html>