Question

So this is a simple javascript code which turns money in the digits into words.
The problem is the browser does not even prompt the window.
I have read the code many times but i am not able to find the error.
Can any one help?

<script type="text/javascript">
        document.writeln("hello World");
    var output=new Array("Rs.",null,null,null,null,null,null,null,null,null,null,null,null,null,null);

        str=window.prompt("Enter a number:","0");
        n1=parseFloat(str);
        if(isNaN(n1))
        {
         docucument.writeln("Enter a Valid number");
         return;
        }
        else
        {
            paise=(n1%1)*100;
            rupee=parseInt(str);
            output[14]="paise only";

            output[13]=two_digit(paise);

            output[12]="and";
            x=rupee%100;
            output[11]=two_digit(x);
            rupee=rupee/100;
            //if(rupee<=0) break end;

            output[10]="hundred";
            x=rupee%10;
            output[9]=one_digit(x);
            rupee=rupee/10;
            //if(rupee<=0) break end;

            output[8]="thousand";
            x=rupee%100;
            output[7]=two_digit(x);
            rupee=rupee/100;
            //if(rupee<=0) break end;

            output[6]="lakhs";
            x=rupee%100;
            output[5]=two_digit(x);
            rupee=rupee/100;
            //if(rupee<=0) break end;

            output[4]="crore";
            x=rupee%100;
            output[3]=two_digit(x);
            rupee=rupee/100;
            //if(rupee<=0) break end;

            output[2]="hundred";
            x=rupee%10;
            output[1]=one_digit(x);
            rupee=rupee/10;
            //if(rupee<=0) break end;

            //end:

            document.writeln(output.join(" "));

        }

        function two_digit(n)
        {
         if(n>=11 && n<=19)
         {
          x=eleven(n);
          return x;
         }
         else
         {
          a=n%10;
          y=one_digit(a);
          a=n/10;
          switch(a)
          {
                    case 1: x="ten"; 
                           break;
                    case 2: x="twenty"; 
                           break;
                    case 3: x="thirty"; 
                           break;   
                    case 4: x="forty"; 
                           break;
                    case 5: x="fifty"; 
                           break;
                    case 6: x="sisty"; 
                           break;
                    case 7: x="seventy"; 
                           break;
                    case 8: x="eighty"; 
                           break;
                    case 9: x="ninty"; 
                           break;
                    case 0: x=null; 
                           break;                                  
         }
         return (x+y);
        }
        function one_digit(n)
        {
         switch(n)
         {
                    case 1: x="one"; 
                           break;
                    case 2: x="two"; 
                           break;
                    case 3: x="three"; 
                           break;   
                    case 4: x="four"; 
                           break;
                    case 5: x="five"; 
                           break;
                    case 6: x="six"; 
                           break;
                    case 7: x="seven"; 
                           break;
                    case 8: x="eigh"; 
                           break;
                    case 9: x="nine"; 
                           break;
                    case 0: x=null; 
                           break;                                  
         }
         return (x);
        }
        function eleven(n)
        {
         switch(n)
         {
                    case 11: x="eleven"; 
                           break;
                    case 12: x="twelve"; 
                           break;
                    case 13: x="thirteen"; 
                           break;   
                    case 14: x="fourteen"; 
                           break;
                    case 15: x="fifteen"; 
                           break;
                    case 16: x="sixteen"; 
                           break;
                    case 17: x="seventeen"; 
                           break;
                    case 18: x="eighteen"; 
                           break;
                    case 19: x="nineteen"; 
                           break;

         }
         return (x);
        }
</script>

Answer 1

Get rid of the else { in the two_digit() function. There is a bracket missing (and the else is not necessary in the code since you always return in the if before it).

Also get rid of the first return in the code. A return cannot be used outside of a function (if you want a quick but “wrong” way to exit, you can use throw 'End'; but that is really only supposed to be used for errors).