     var islowercase:Bool {
         return self.lowercaseString == self
     }
-   
+    
     // Return float value
     var tofloat:Float {
         return (self as NSString).floatValue

    }
    
    // Get substring between two sets of strings
    public func substr(#start: String, end: String) -> String {
        return self[start, end]
    }
    

    public func startswith(target: String) -> Bool {
        return target == self.left(target.length)
    }
    
    // Check to see if a string ends with "target"
    public func endswith(target: String) -> Bool {
        return target == self.right(target.length)
    }
    
    // See how many times a char/string exists
    public func occurences(sub: String) -> Int {
        var result: Int = 0
