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iOS Game UI for Web & PWA: A Developer Guide

A comprehensive guide to building fullscreen web games and PWAs on iPhone, covering safe area insets, Dynamic Island handling, canvas sizing, and the many undocumented gotchas that will waste your time if you don't know about them.

Building a fullscreen web game for iPhone remains one of the most technically frustrating challenges in web development. The core difficulty stems from Apple's layered physical constraints — the Dynamic Island, notch, home indicator, rounded corners — combined with iOS Safari's incomplete web standards support (no Fullscreen API, no orientation lock) and persistent WebKit bugs. This guide covers the foundational patterns, exact pixel values, critical gotchas, and hard-won workarounds.

1. The Foundational CSS Pattern

This file is a log of everything I've encountered when trying to migrate a Node.js, Elastic Beanstalk application from the Amazon Linux platform to the Amazon Liunx 2 platform. Here's why you should migrate:

LTS support up to 2023 source
The Amazon Linux AMI's end-of-life is December, 2020 source
Amazon Linux 2 has some big package upgrades (GCC, Glibc, etc.)
Elastic Beanstalk also has some upgrades on top of Amazon Linux 2 (e.g. faster deploys)

Challenges

Disabling NPM install

collapsible markdown?

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yes, even hidden code blocks!

print("hello world!")

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

Promises as EventEmitters

I was trying to understand JavaScript Promises by using various libraries (bluebird, when, Q) and other async approaches.

I read the spec, some blog posts, and looked through some code. I learned how to

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

Table of Contents generated with DocToc

FrontEnd Masters - ES6 notes
Rest Parameters

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

	// Create "backend" object to hold data for getters and setters on main object
	const _ = Object.create( null );

	Object.defineProperties(
	_,
	{
	firstname: {
	value: 'John',
	writable: true,
	enumerable: false,

	{
	"scripts": {
	"build": "npm run build:es2015 && npm run build:esm && npm run build:cjs && npm run build:umd && npm run build:umd:min",
	"build:es2015": "tsc --module es2015 --target es2015 --outDir dist/es2015",
	"build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
	"build:cjs": "tsc --module commonjs --target es5 --outDir dist/cjs",
	"build:umd": "rollup dist/esm/index.js --format umd --name YourLibrary --sourceMap --output dist/umd/yourlibrary.js",
	"build:umd:min": "cd dist/umd && uglifyjs --compress --mangle --source-map --screw-ie8 --comments --o yourlibrary.min.js -- yourlibrary.js && gzip yourlibrary.min.js -c > yourlibrary.min.js.gz",
	}
	}