Swift Print Variables

Swift Print Variables

Print values with concatenation or string interpolation.

Use \(value) to insert values. You can set a separator and a terminator.

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Concatenation and Interpolation

Use concatenation to combine strings and interpolate to embed values inside strings.

Example

let first = "Hello"
let second = "Swift"
// Concatenation
print(first + ", " + second)
// Interpolation
print("\(first), \(second)")

let a = 2, b = 3
print("a = \(a), b = \(b), sum = \(a + b)")

This example shows concatenation and interpolation.

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Custom Separator and Terminator

Set a separator between items and a terminator at the end.

Example

let a = 1, b = 2, c = 3
print(a, b, c, separator: ", ", terminator: "; ")
print("done")  // prints on the same line after a semicolon

This example sets a comma-space separator and a semicolon terminator.