quocnb

extension Sequence {
    func forEach(_ closure: (Element) -> () -> Void) {
        for element in self {
            closure(element)()
        }
    }
}

let arr = [view1, view2]
arr.forEach(UIView.removeFromSuperview)

quocnb

public struct URLCredentialHelper {
    enum URLCredentialError {
        static let invalidUrl = NSError(domain: NSURLErrorDomain, code: NSURLErrorBadURL, userInfo: nil)
    }

    static func store(user: String, password: String, url: String) throws {
        let protectionSpace = try createProtectionSpace(for: url)
        let credentital = URLCredential(user: user, password: password, persistence: .permanent)
        URLCredentialStorage.shared.set(credentital, for: protectionSpace)
    }

quocnb

import UIKit

class MarginLabel: UILabel {

    var insets = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)

    override func drawText(in rect: CGRect) {
        super.drawText(in: rect.inset(by: insets))
    }

quocnb

Find and print text of binary file

strings <file_name> | grep "your_text"

Find text in image file

1. same above
2. Find hidden text by https://stylesuxx.github.io/steganography/

Find text in multiple directories