Trim blank characters

We want to remove blank characters at both side of string. Swift doesn’t has trim() command like Java, we need to create new class like this.

import Foundation

import UIKit

extension String

{

func trim() ->String

    {

returnself.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())

    }

}

Now whenever want to trim blank characters, we use this.

let nospace= text.trim()