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@mohsinbmwm3
Last active January 18, 2021 14:03
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Useful String extensions in swift
import Foundation
extension String {
var wordCount: Int {
let regex = try? NSRegularExpression(pattern: "\\w+")
return regex?.numberOfMatches(in: self, range: NSRange(location: 0, length: self.utf16.count)) ?? 0
}
func toInt() -> Int? {
return Int(self)
}
func toDouble() -> Double? {
return Double(self)
}
func toFloat() -> Float? {
return Float(self)
}
func isEmailValid() -> Bool {
guard !self.isEmpty else { return false }
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
return emailPred.evaluate(with: self)
}
func isPhoneNumberValid() -> Bool {
guard !self.isEmpty else { return false }
let phoneNumberRegex = "^[6-9]\\d{9}$"
let phonePred = NSPredicate(format: "SELF MATCHES %@", phoneNumberRegex)
return phonePred.evaluate(with: self)
}
func localized() -> String {
guard !self.isEmpty else { return self }
let result = NSLocalizedString(self, bundle: Bundle.main, comment: "")
// If you are using any custom bundle in your app you can pass that in bundle parameter
if result != self {
return result
}
return self
}
func withPrefix(_ prefix: String) -> String {
guard !self.hasPrefix(prefix) else { return self }
return "\(prefix)\(self)"
}
}
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