IF...ELSE...ELSEIF...ENDIF

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The if-then construct (sometimes called if-then-else) is common across many programming languages. Although the syntax varies quite a bit from language to language, the basic structure looks like.

Parameters

Condition <unquoted string>
	This parameter indicates a condition or conditions that is evaluated.

Consider the following variables and respecting values:

Variable	Value
VAR(0)	1
VAR(1)	2
VAR(2)	10
VAR(3)	0
VAR(4)	""

Example 1

Example 2

If(VAR(0)=1 AND VAR(2)=2)

Set Value(VAR(0),Numeric, 4)

Else

Set Value(VAR(0),Numeric, 40)

End If

Result:

Variable	Value
VAR(0)	40
VAR(1)	2
VAR(2)	10

If(VAR(0) <> 1)

Set Value(VAR(0),Numeric, 4)

Else If(VAR(1) > 1 AND VAR(2) < 50)

Set Value(VAR(0),Numeric, 40)

End If

Result:

Variable	Value
VAR(0)	40
VAR(1)	2
VAR(2)	10

Example 3		Example 4
If(VAR(3)= VAR(4)) Comparation made is 0 = "" and the result is "" Return: True		If(VAR(4)= VAR(3)) Comparation made is "" = 0 and the result is "0" Return: False

Each If action must have a corresponding End if action.
When the operands are of different types (numeric, string), the second operand is converted to the type of the first (See Example 3 and Example 4).