MOTOBIT.COMASP and optional parameters

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Areas > Languages > JScript
Areas > Languages > VBScript
Areas > ASP / ASP.Net
VBS does not enable optional parameters with function declaration.
The function declaration in VBS looks like :
[Public | Private] Function name [(arglist)]
    [statements]
    [name = expression]
    [Exit Function]
    [statements]
    [name = expression]
End Function
The arglist argument has the following syntax and parts:

[ByVal | ByRef] varname[( )]


Function declaration in JScript looks like :

function functionname([argument1 [, argument2 [, ...argumentn]]])
{
   statements
}
Where argument1...argumentn are optional, comma-separated list of arguments the function understands. JScript has special array variable called 'arguments'. The variable can retrieve any of the function argument.
arguments[0] ... first argument of the function
arguments[1] ... second argument of the function, etc.
So you can use JScript to do the work :


function sprintf(Templ){
  var C = 1;
  var Pos = Templ.indexOf("%s");
  while(Pos>=0){
    Templ = Templ.substr(0, Pos) + arguments[C++] + Templ.substr(Pos+2)
    Pos = Templ.indexOf("%s")
  }
  return Templ;
};
Then you can call the function :
If Err<>0 Then
  Response.Write sprintf("The Function raises error %s (%s).", Err.Number, Err.Description)
End If

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