Swift 3 replacingOccurrences of multiple strings

Question

I have JavaScript code that looks like the following:

foo.replace(/(\r\n|\n|\r)/gm, "");

Basically this strips any return carriages and new lines from my string. I'd like to do something similar in Swift 3.

I see func replacingOccurrences(of target: String, with replacement: String, options: CompareOptions = default, range searchRange: Range<Index>? = default) -> String is available. The problem is, this only takes one string in the of parameter.

Does this mean I need to call the method multiple times for each of my instances above, once for \r\n, once for \n\ and once for \r? Is there anyway to potentially accomplish something closer to what the regex is doing instead of calling replacingOccurrences three times?

Answer 1

Use replacingOccurrences with the option set to regularExpression.

let updated = foo.replacingOccurrences(of: "\r\n|\n|\r", with: "", options: .regularExpression)

Answer 2

To replace non-digits you can use "\D" as a regular expression

let numbers = "+1(202)-505-71-17".replacingOccurrences(of: "\\D", with: "", options: .regularExpression)

You can find how to use other regular expressions here