Contents

init(_:)

Creates a Unicode scalar with the specified numeric value.

Declaration

init?(_ v: UInt32)

Parameters

  • v:

    The Unicode code point to use for the scalar. The initializer succeeds if v is a valid Unicode scalar value—that is, if v is in the range 0...0xD7FF or 0xE000...0x10FFFF. If v is an invalid Unicode scalar value, the result is nil.

Discussion

For example, the following code sample creates a Unicode.Scalar instance with a value of an emoji character:

let codepoint: UInt32 = 127881
let emoji = Unicode.Scalar(codepoint)
print(emoji!)
// Prints "🎉"

In case of an invalid input value, nil is returned.

let codepoint: UInt32 = extValue   // This might be an invalid value
if let emoji = Unicode.Scalar(codepoint) {
  print(emoji)
} else {
  // Do something else
}

See Also

Creating a Scalar