How to convert String to byte in Swift？

swift string nsdata
YuXuan Fu picture YuXuan Fu · Jul 30, 2014 · Viewed 41.7k times · Source

How to convert String to byte in Swift？ Like String .getBytes()in Java.

Answer

Albin Stigo picture Albin Stigo · Sep 19, 2014

There is a more elegant way.

Swift 3:

let str = "Hello"
let buf = [UInt8](str.utf8)

Swift 4: (thanks to @PJ_Finnegan)

let str = "Hello"
let buf: [UInt8] = Array(str.utf8)

Related questions

How to initialise a string from NSData in Swift

I have been trying to initialise a string from NSData in Swift. In the NSString Cocoa Documentation Apple is saying you have to use this: init(data data: NSData!, encoding encoding: UInt) However Apple did not include any example for …

Read More
Convert Int to String in Swift

I'm trying to work out how to cast an Int into a String in Swift. I figure out a workaround, using NSNumber but I'd love to figure out how to do it all in Swift. let x : Int = 45 let xNSNumber = …

Read More
Split a String into an array in Swift?

Say I have a string here: var fullName: String = "First Last" I want to split the string base on white space and assign the values to their respective variables var fullNameArr = // something like: fullName.explode(" ") var firstName: String = fullNameArr[0] var …

Read More