Could do with help for a better expression

Question

Hi guys im using the following code to detect if a file is a text file it works however it is possible to fool it by having a file file.txt.doc. can anyone suggest a better way to do this? bear in mind its a javascript function.
var filter = /.txt/;
     if (filter.test(str))

Answer 1

> Hi guys im using the following code to detect if a
file is a text file it works however it is possible
to fool it by having a file file.txt.doc. can anyone
suggest a better way to do this?         java.io.File file = new java.io.File("test.txt");
        if(file.exists() && file.getName().endsWith(".txt")) {
            System.out.println(file.getName()+" is a txt-file!");
> bear in mind its a
javascript function.
Ah well, bear in mind that this is a Java forum.
; )