In Classic ASP (VBScript), conditionals are used to perform different actions based on different conditions, just like in most programming languages.

Basic Conditional Statements in Classic ASP

1. If...Then...Else

<%Dim ageage = 20If age >= 18 Then    Response.Write "You are an adult."Else    Response.Write "You are a minor."End If%>

2. If...Then...ElseIf...Else

<%Dim scorescore = 75If score >= 90 Then    Response.Write "Grade: A"ElseIf score >= 80 Then    Response.Write "Grade: B"ElseIf score >= 70 Then    Response.Write "Grade: C"Else    Response.Write "Grade: F"End If%>

3. Single-line If Statement

<%Dim isAdminisAdmin = TrueIf isAdmin Then Response.Write "Welcome, Admin!"%>

4. Select Case (Alternative to multiple If...ElseIf)

<%Dim dayday = WeekdayName(Weekday(Date))Select Case day    Case "Monday"        Response.Write "Start of the workweek."    Case "Friday"        Response.Write "Almost weekend!"    Case Else        Response.Write "Just another day."End Select%>

Summary:

• Use If...Then...Else for basic branching.

• Use ElseIf to check multiple conditions.

• Use Select Case for cleaner multi-condition checks.

• Conditions are typically comparisons like =, <>, <, >, <=, >=.

Want me to show examples with logical operators (And, Or, Not) or nested conditionals?