This tutorial belongs to the Swift series

Swift provides the Bool type, which can have two values: true and false.

var done = false
done = true

Booleans are especially useful with conditional control structures like if statements or the ternary conditional operator:

var done = true

if done == true {
    //code
}

Lessons in this unit:

0:	Introduction
1:	Introduction to Swift
2:	Variables and Constants
3:	Numbers
4:	▶︎ Booleans
5:	Strings
6:	Operators
7:	Operator Precedence
8:	Comments
9:	Semicolons