Basic Control Flow

Control flow is how you tell your program to make decisions and repeat actions. In this chapter, you'll learn about Booleans, comparison operators, conditional statements, and loops -- the tools that let your code respond to different situations.

Booleans

A Bool in Swift has exactly two possible values: true or false. Booleans are the foundation of all decision-making in code:

let isLoggedIn = true
let hasPermission = false

You can combine Booleans with logical operators: && (AND), || (OR), and ! (NOT).

Full content for this chapter will be added in a future update. The complete article covers comparison operators, if/else statements, the ternary operator, while loops, repeat-while loops, and variable scope.