m25lazi

// Pure function
func sum(_ num1: Int, _ num2: int) -> Int {
    return num1 + num2
}


// Impure function
var accumulated = 0
func add(_ num: Int) -> Int {
    accumulated = num + accumulated

m25lazi

import UIKit

class VerticalScrollableStackViewController: UIViewController {

    let scrollView: UIScrollView = UIScrollView(frame: .zero)
    let stackView: UIStackView = UIStackView(frame: .zero)

    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = .gray

m25lazi

var shouldLogTextAnalyzer = false
if ProcessInfo.processInfo.environment["text_analyzer_log"] == "verbose" {
  shouldLogTextAnalyzer = true
}

if shouldLogTextAnalyzer {
  /// Actual logger code
}

m25lazi

var shouldLogTextAnalyzer = false
if ProcessInfo.processInfo.environment["text_analyzer_log"] == "verbose" {
  shouldLogTextAnalyzer = true
}

if shouldLogTextAnalyzer {
  /// Actual logger code
}