Initializer

init(stringInterpolation:)

Creates a new instance from an interpolated string literal.

Declaration

init(stringInterpolation: DefaultStringInterpolation)

Discussion

Do not call this initializer directly. It is used by the compiler when you create a string using string interpolation. Instead, use string interpolation to create a new string by including values, literals, variables, or expressions enclosed in parentheses, prefixed by a backslash (\(…)).

let price = 2
let number = 3
let message = """
              If one cookie costs \(price) dollars, \
              \(number) cookies cost \(price * number) dollars.
              """
print(message)
// Prints "If one cookie costs 2 dollars, 3 cookies cost 6 dollars."

Relationships

From Protocol

See Also

Infrequently Used Functionality

func index(of: Character) -> String.Index?

Returns the first index where the specified value appears in the collection.

Deprecated
init(NSString)
init(stringLiteral: String)

Creates an instance initialized to the given string value.

init(unicodeScalarLiteral: String)

Creates an instance initialized to the given value.

init(extendedGraphemeClusterLiteral: String)

Creates an instance initialized to the given value.

var customPlaygroundQuickLook: _PlaygroundQuickLook

A custom playground Quick Look for the String instance.

Deprecated
func withContiguousStorageIfAvailable<R>((UnsafeBufferPointer<Character>) -> R) -> R?

Call body(p), where p is a pointer to the collection’s contiguous storage. If no such storage exists, it is first created. If the collection does not support an internal representation in a form of contiguous storage, body is not called and nil is returned.