Swift : How to get the string before a certain character?

Question

How do I get the string before a certain character in swift? The code below is how I did it in Objective C, but can\'t seem to perform the same task in Swift. Any tips or su

Answer 1

My 2 cents :-) using Swift 3.0, similar to PHP strstr

extension String {

    func strstr(needle: String, beforeNeedle: Bool = false) -> String? {
        guard let range = self.range(of: needle) else { return nil }

        if beforeNeedle {
            return self.substring(to: range.lowerBound)
        }

        return self.substring(from: range.upperBound)
    }

}

Usage1

"Hello, World!".strstr(needle: ",", beforeNeedle: true) // returns Hello

Usage2

"Hello, World!".strstr(needle: " ") // returns World!