How do I take a substring to the first index of a character?

Question

I\'m very new to Swift; I\'ve spent the morning reading StackOverflow and trying many strategies, in vain, to accomplish the following:

I have a string, say \"12345 is

Answer 1

You can use a regex, try this code:

var myMessage  = "12345 is your number!"

if let match = myMessage.rangeOfString("-?\\d+", options: .RegularExpressionSearch) {

    print(myMessage.substringWithRange(match)) // 12345
    let myNumber = Int(myMessage.substringWithRange(match)) // Then you can initialize a new variable
}

The advantage is that this method extracts only the numbers wherever they are in the String

Hope this help ;)