Abstract
The chapter introduces the use of logical expressions in a variety of selection statements. First, if statements are introduced, and then if-else statements. This is expanded upon with the use of else and elseif clauses. Nesting and cascading if statements are explained. The switch statement is also demonstrated, as is the concept of choosing from a menu. Finally, “is” functions that return logical true or false are covered. Examples are shown in functions and scripts. Throwing errors is shown. Common mistakes that result in logical errors are also explained.
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