StringHelper.swift

//
//  StringHelper.swift
//  StringHelper
//
//  Created by Gabrail on 3/7/17.
//  Copyright © 2017 Hidart. All rights reserved.
//

extension String {
    
        func fromBase64() -> String? {
        guard let data = Data(base64Encoded: self) else {
            return nil
        }
        
        return String(data: data, encoding: .utf8)
    }
    
    func toBase64() -> String {
        return Data(self.utf8).base64EncodedString()
    }
    
    func dropLast(_ n: Int = 1) -> String {
        return String(characters.dropLast(n))
    }
    
    var dropLast: String {
        return dropLast()
    }
    
    func toDouble() -> Double? {
        return NumberFormatter().number(from: self)?.doubleValue
    }
    
    func toInt() -> Int? {
        return NumberFormatter().number(from: self)?.intValue
    }
    
    func toFloat() -> Float? {
        return NumberFormatter().number(from: self)?.floatValue
    }
    
    
    var parseJSONString: Any? {
        let data = self.data(using: String.Encoding.utf8, allowLossyConversion: false)
        guard let jsonData = data else { return nil }
        do { return try JSONSerialization.jsonObject(with: jsonData, options: JSONSerialization.ReadingOptions.mutableContainers) }
        catch { return nil }
    }
}
}