Logical Operators in Swift

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Photo by Michael Dziedzic on Unsplash

Logical operators give you the ability to control program flow. They are so important that it is essential that we think about how these work in Swift.

This guide is here to help you, and give the guidance you need!

Difficulty: Beginner | Easy | Normal | Challenging

Prerequisites:

• Be able to produce a “Hello, World!” iOS application (guide HERE)

OR

• Use Swift Playgrounds to follow with the code (guide HERE)

WITH

• To understand the truth tables included below some basic knowledge of Binary for programmers would be useful (guide HERE)
• Some understanding of the meaning of business logic (guide HERE)

Terminology

Boolean: a data type is any data type that has either a true or false value, yes or no value, or on or off (1 or 0) value

Logical Operators: symbols that allow a program to make a decision based upon multiple condition

Truth Table: a mathematical table used in logic

Logical Operators

The general logical operators are defined in the truth tables below which show the logical…