Gets suffix for current day (st, nd, rd or th)

GetDaySuffix.cs

@{
  int lastUpdatedOnDay = CurrentNode.Data.DateModified.Day;
  string lastUpdatedOn = lastUpdatedOnDay + GetDaySuffix(lastUpdatedOnDay) + CurrentNode.Data.DateModified.ToString(" MMMM yyyy");
}

<span>Last updated on @lastUpdatedOn</span>

@functions {
    //Gets suffix for current day (st, nd, rd or th)
    string GetDaySuffix(int day) 
    {
    
        if (day == 1 || day == 21 || day == 31) 
        {
            return "st";
        }
        else if (day == 2 || day == 22) 
        {
            return "nd";
        }
        else if (day == 3 || day == 23) 
        {
            return "rd";
        }
        else 
        {
            return "th";
        }
    }
}

GetDaySuffix.vbs

@{
  Dim lastUpdatedOnDay As Int = CurrentNode.Data.DateModified.Day
  Dim lastUpdatedOn As String = lastUpdatedOnDay + GetDaySuffix(lastUpdatedOnDay) + CurrentNode.Data.DateModified.ToString(" MMMM yyyy")
}

<span>Last updated on @lastUpdatedOn</span>

@Functions
  
  Function GetDaySuffix(day As Integer) As String
  	Select Case day
  		Case 1, 21, 31
  			Return "st"
  		Case 2, 22
  			Return "nd"
  		Case 3, 23
  			Return "rd"
  		Case Else
  			Return "th"
  	End Select
  End Function
    
End Functions