hvsw

function freespace() {
	# rm -rf ~/Library/Containers/com.apple.mail/Data/Library/Mail\ Downloads/

	# https://stackoverflow.com/a/53199763/3724306
	echo "1. Boot all the sims that I want to use"
	echo "2. remove all the simulators that I don't have booted"
	echo "Run: xcrun simctl list | grep -w \"Shutdown\"  | grep -o \"([-A-Z0-9]*)\" | sed \'s/[\(\)]//g\\' | xargs -I uuid xcrun simctl delete uuid"

	echo "Cleaning ~/Library/Caches/com.apple.dt.Xcode..."
	rm -rf ~/Library/Caches/com.apple.dt.Xcode/*

hvsw

import Foundation
import ObjectiveC

// MARK: - DynamicTypeResponsive
protocol DynamicTypeResponsive {
    var respondsToDynamicTypeChanges: Bool { get set }
}

extension UILabel: DynamicTypeResponsive {
    var respondsToDynamicTypeChanges: Bool {

hvsw

// TO BE CONTINUED...

extension Notification.Name {
    func post(to notificationCenter: NotificationCenter = .default, withObject object: Any? = nil) {
        notificationCenter.post(name: self, object: object)
    }
}

extension Notification {
    struct MyApp {

hvsw

import Foundation

extension Data {
    var hexString: String {
        let hexString = map { String(format: "%02.2hhx", $0) }.joined()
        return hexString
    }
}

hvsw

let photo = try! loadImage("./Resources/John Appleseed.jpg")

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let x = try! divide(2, 2)

hvsw

// Using optional try
let x = try? divide(0, 2) // (Yes you can use an if let/guard/whatever to unwrap it safely)

// Using do-catch
let y: Float?
do {
    y = try divide(0, 2)
} catch { // exhaustive just for testing
    y = nil
}

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func calculate() {
    do {
        let x = 2
        let y = 2
        let result = try divide(x, y)
        resultLabel.text = String(result)
    } catch DivisionErrorEnum.DividendIsZero(let code) {
        print("Your message when the DIVIDEND is zero. \nDetails: Execution failed with code \(code).")
    } catch DivisionErrorEnum.DivisorIsZero(let code) {
        print("Your custom message when the DIVISOR is zero. \nDetails: Execution failed with code \(code).")

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enum DivisionErrorEnum: ErrorType {
    case DividendIsZero(code: Int)
    case DivisorIsZero(code: Int)
}

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func calculate() {
    do {
        let x:Float = 2.0
        let y:Float = 2.0
        let result = try divide(x, y)
        resultLabel.text = String(result)
    } catch DivisionErrorEnum.DividendIsZero(let msg) {
        print(msg)
    } catch DivisionErrorEnum.DivisorIsZero(let msg) {
        print(msg)