pawan-preet

//
//  AutolayoutHelper.swift
//
//  Created by Pawan on 30/07/19.
//  Copyright © 2019 Pawan. All rights reserved.
//


import Foundation

rickwierenga

view.subviews.compactMap({ $0 as? UITextField }).forEach { textfield in
    if let text = textfield.text, text.isEmpty {
        textfield.backgroundColor = .yellow // highlight
    } else {
        textfield.backgroundColor = .white // default
    }
}

netgfx

//
//  AudioPlayer.swift
//
//  Created by MDobekidis
//

import Foundation
import AVFoundation
import UIKit
import Signals

JadenGeller

// Numerical matrix examples

let x: Matrix = [[10, 9, 8], [3, 2, 1]]
let y: Matrix = [[1, 2, 3], [4, 5, 6]]
let z: Matrix = [[1, 2], [3, 4], [5, 6]]

x + y              // [[11, 11, 11], [7, 7, 7]]
x * y              // [[10, 18, 24], [12, 10, 6]]
2 * x              // [[20, 18, 16], [6, 4, 2]]
y ** z             // [[22, 28], [49, 64]]