kean

enum APIEnvironment: String, CaseIterable {
    case dev
    case test
    case stage
    case prod
}

struct ContentView: View {
    @State private var selection: APIEnvironment? = env
    

marcoarment

<?php
function base64url_encode($binary_data) { return strtr(rtrim(base64_encode($binary_data), '='), '+/', '-_'); }

function apns_jwt_token($team_id, $key_id, $private_key_pem_str)
{
    if (! function_exists('openssl_get_md_methods') || ! in_array('sha256', openssl_get_md_methods())) throw new Exception('Requires openssl with sha256 support');

    $private_key = openssl_pkey_get_private($private_key_pem_str);
    if (! $private_key) throw new Exception('Cannot decode private key');

drewbeer

{
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",

nicklockwood

/// Withable is a simple protocol to make constructing
/// and modifying objects with multiple properties
/// more pleasant (functional, chainable, point-free)
public protocol Withable {
  init()
}

public extension Withable {
  /// Construct a new instance, setting an arbitrary subset of properties
  init(with config: (inout Self) -> Void) {

douglashill

// Douglas Hill, December 2018
// Made for https://douglashill.co/reading-app/
// Find the latest version of this file at https://github.com/douglashill/KeyboardKit

import UIKit

/// A table view that allows navigation and selection using a hardware keyboard.
/// Only supports a single section.
class KeyboardTableView: UITableView {
    // These properties may be set or overridden to provide discoverability titles for key commands.

parrots

//
//  AsyncOperation.swift
//  Slopes
//

import Foundation

class AsyncOperation: Operation {
    private let stateLock = NSLock()
    private var observers: [NSKeyValueObservation] = [NSKeyValueObservation]()

ole

import UIKit

/// A validation rule for text input.
public enum TextValidationRule {
    /// Any input is valid, including an empty string.
    case noRestriction
    /// The input must not be empty.
    case nonEmpty
    /// The enitre input must match a regular expression. A matching substring is not enough.
    case regularExpression(NSRegularExpression)

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

smileyborg

// UICollectionView Objective-C example

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
        
    NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] firstObject];
    if (selectedIndexPath != nil) {
        id<UIViewControllerTransitionCoordinator> coordinator = self.transitionCoordinator;
        if (coordinator != nil) {
            [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {

khanlou

import Foundation
import HTTP
import Vapor

public protocol SideEffect {
    func perform() throws
}

public protocol Command: ResponseRepresentable {