Can the conversion of a String to Data with UTF-8 encoding ever fail?

Solutions Collect From Internet About “Can the conversion of a String to Data with UTF-8 encoding ever fail?”

UTF-8 can represent all valid Unicode code points, therefore a conversion
of a Swift string to UTF-8 data cannot fail.

The forced unwrap in

let string = "some string .."
let data = string.data(using: .utf8)!

is safe.

The same would be true for .utf16 or .utf32, but not for
encodings which represent only a restricted character set,
such as .ascii or .isoLatin1.

You can alternatively use the .utf8 view of a string to create UTF-8 data,
avoiding the forced unwrap:

let string = "some string .."
let data = Data(string.utf8)