How to create a String with format?

Question

I think this could help you:

let timeNow = time(nil)
let aStr = String(format: "%@%x", "timeNow in hex: ", timeNow)
print(aStr)

Example result:

timeNow in hex: 5cdc9c8d

nothing special

let str = NSString(format:"%d , %f, %ld, %@", INT_VALUE, FLOAT_VALUE, LONG_VALUE, STRING_VALUE)

let str = "\(INT_VALUE), \(FLOAT_VALUE), \(DOUBLE_VALUE), \(STRING_VALUE)"

Update: I wrote this answer before Swift had String(format:) added to it's API. Use the method given by the top answer.

No NSString required!

String(format: "Value: %3.2f\tResult: %3.2f", arguments: [2.7, 99.8])

or

String(format:"Value: %3.2f\tResult: %3.2f", 2.7, 99.8)