swift string variable code example

Example 1: print string sqift

var str1 = "Hello, world"
print(str1)

Example 2: swift variable in a string

let x = 10
let string = "x equals \(x) and you can also put expressions here \(5*2)"

Example 3: declare empty string in swift

// Create a literal empty string
var emptyString = ""

// Create an optional string
var emptyVariable: String?  // This allows this variable to have a null value, or nil in swift