If

Evaluates and returns a given statement if the condition is true. If the condition is false, another statement is evaluated and returned.

Syntax

if
   ·  [condition]
   ·  [ifTrue]
   ·  [ifFalse]
condition
A statement that evaluates to boolean.
ifTrue
The statement to evaluate and return if the condition is true.
ifFalse
The statement to evaluate and return if the condition is false.