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sindresorhus / MenuBarApp.swift
Last active Jul 18, 2020
Dream API for macOS menu bar apps
View MenuBarApp.swift
struct MyApp: App {
var body: some Scene {
StatusBar {
StatusItem(id: "foo", systemImage: "gear") {
Menu {
Button("Toggle") {}
Button("Quit") {}
View swiftui_helper_property_wrapper.swift
import Combine
import SwiftUI
@available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *)
public struct Model<Value>: DynamicProperty {
private final class _Box: ObservableObject {
let objectWillChange = ObservableObjectPublisher()
var value: Value {
sindresorhus / EmptyInitializable.swift
Created Jan 7, 2020
A type that can be initialized without any parameters.
View EmptyInitializable.swift
/// Types that can be initialized without any parameters.
/// Useful if you need to accept an array of metatypes and then initialize them.
protocol EmptyInitializable {
extension Int: EmptyInitializable {}
extension Int8: EmptyInitializable {}
extension Int16: EmptyInitializable {}
extension Int32: EmptyInitializable {}
sindresorhus / NativeButton.swift
Created Oct 11, 2019
Example of using NSButton in SwiftUI to access missing features like `keyEquivalent` (for example, to make the button the default and highlighted). Stack Overflow answer:
View NativeButton.swift
struct ContentView: View {
var body: some View {
NativeButton("Submit", keyEquivalent: .return) {
// Some action
sindresorhus / ShowForAppRuns.swift
Created Oct 10, 2019
SwiftUI modifier to show a view only a given amount of app runs.
View ShowForAppRuns.swift
// Depends on
@available(macOS 10.15, *)
private struct ShowForAppRuns: ViewModifier {
private static var runCounts = [String: Int]()
private let count: Int
private let startShowingFromAppRun: Int
private let runCount: Int
init(count: Int, id: String, startShowingFromAppRun: Int = 1) {
View puppeteer-with-adblock.js
'use strict';
const puppeteer = require('puppeteer');
(async () => {
0. download ublock, I used
1. run $PATH_TO_CHROME --user-data-dir=/some/empty/directory --load-extension=/location/of/ublock
2. enable block lists you want to use
sindresorhus /
Created Feb 1, 2019 — forked from tclementdev/
Making efficient use of the libdispatch (GCD)

libdispatch efficiency tips

I suspect most developers are using the libdispatch inefficiently due to the way it was presented to us at the time it was introduced and for many years after that, and due to the confusing documentation and API. I realized this after reading the 'concurrency' discussion on the swift-evolution mailing-list, in particular the messages from Pierre Habouzit (who is the libdispatch maintainer at Apple) are quite enlightening (and you can also find many tweets from him on the subject).

My take-aways are:

  • You should have very few queues that target the global pool. If all these queues are active at once, you will get as many threads running. These queues should be seen as execution contexts in the program (gui, storage, background work, ...) that benefit from executing in parallel.

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