IIf

→ any

Returns one of two values based on a boolean condition. Inline if — similar to the ternary operator.

Available in: Email CloudPage Automation Triggered Send

Syntax

Platform.Function.IIf(condition, trueValue, falseValue)

3 arguments

Parameters

Name	Type	Required	Description
condition	boolean	Yes	Boolean expression to evaluate
trueValue	any	Yes	Value returned if condition is true
falseValue	any	Yes	Value returned if condition is false

Examples

var greeting = Platform.Function.IIf(isLoggedIn, "Welcome back!", "Please log in.");
Write(greeting);

// Equivalent ternary:
var greeting2 = isLoggedIn ? "Welcome back!" : "Please log in.";

In SSJS, the ternary operator (? :) is preferred over IIf — use IIf only for consistency with existing AMPscript patterns.