Luke Davis spookyd

GraphQL introspection query via curl

cat introspection_query.json

{ 
  "query": "query IntrospectionQuery {
      __schema {
        queryType { name }
        mutationType { name }

Design Systems

Getting Started:

Resources:

Application Argument Debug Cheat Sheet

A curated list of arguments that can be used for enabling tools on iOS development.

Launch Arguments

Core Data

Free Programming Ebooks - O'Reilly Media

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	import SwiftUI

	struct ContentView: View {
	var body: some View {
	HStack {
	Text("Hello")
	.padding()
	.background(.blue)
	.overlay {
	Color.yellow

	/// The ring leader
	final class ModalTransitioningDelegate: NSObject, UIViewControllerTransitioningDelegate {
	func presentationController(
	forPresented presented: UIViewController,
	presenting: UIViewController?,
	source: UIViewController
	) -> UIPresentationController? {
	return PresentationController(presentedViewController: presented, presenting: presenting)
	}

	// Mask UIView with rect/path
	// inverse = false: part inside rect is kept, everything outside is clipped
	// inverse = true: part inside rect is cut out, everything else is kept
	//
	// Usage:
	//
	// // - Cuts rectangle inside view, leaving 20pt borders around
	// let rect = CGRect(x: 20, y: 20, width: bounds.size.width - 202, height: bounds.size.height - 202)
	// targetView.mask(withRect: rect, inverse: true)
	//

	// Run this in the F12 javascript console in chrome
	// if a redirect happens, the page will pause
	// this helps because chrome's network tab's
	// "preserve log" seems to technically preserve the log
	// but you can't actually LOOK at it...
	// also the "replay xhr" feature does not work after reload
	// even if you "preserve log".

	window.addEventListener("beforeunload", function() { debugger; }, false)