uhooi

in Swift, use formatted methods directly on the types you want to format, optionally using FormatStyle and its subtypes to customize formatter output. This approach supports dates, integers, floating-point numbers, measurements, sequences, and person name components. Foundation caches identically-configured formatter instances internally, allowing you to focus on your app’s formatting needs.

Data Formatting | Apple Developer Documentation https://developer.apple.com/documentation/foundation/data_formatting

Numbers and Currency

Decimal.FormatStyle (via ParseableFormatStyle)
Decimal.FormatStyle.Attributed
[Decimal.FormatStyle.Currency](https://developer.apple.com/documentation/foun

登壇資料チェックリスト

こちらは登壇資料をひととおり作成した後に見ていただきたい資料です。

「登壇見たけど、わかりづらくて、よく分からなかった」を少しでも減らし、登壇者のこだわりを参加者のみなさまに伝えやすくするため、こちらのチェックリストをご確認ください。

登壇資料の Bad Case

まずは「わかりづらさ」をなるべく洗い出して対応し、 聞き手にとって「わかりづらい」セッションでは無い 、ということを最低限目指してもらえると嬉しいです。

レビューアーの皆さんも「わかりづらさ」の対応をするサポートを中心にお願いします。

	import SwiftUI

	struct ContentView: View {
	@State private var image = UIImage()
	@State private var buttonRect = CGRect()
	@State private var isBrightBackground = false
	@State private var viewID = UUID()

	var body: some View {
	NavigationStack {

	import SwiftUI

	struct Item: Identifiable {
	let id = UUID()
	var text = ""
	var color: Color = .clear
	}

	struct CarouselView: View {
	var items: [Item] = [

	import SwiftUI

	struct ContentView: View {
	@State private var initOffset: CGFloat = .zero
	@State private var offset: CGFloat = .zero
	@State private var closeButtonYPosition: CGFloat = .zero

	let headerHeight: CGFloat = 300

	var body: some View {

	import SwiftUI

	struct CounterView: View {
	@State var counter = 0

	var body: some View {
	Button {
	counter += 1
	} label: {
	Text(counter.description)

	import Foundation

	extension String: Error {}

	// MARK: - Evaluation

	enum Atom {
	case symbol(String)
	case number(Double)
	}

	# -----------------------------------------------------------------------------
	# SwiftGen によるローカライズを剥がすスクリプト。
	# -----------------------------------------------------------------------------

	class String
	# シンボル変換
	def symbol
	# e.g.
	# - OK → Ok
	# - FAQ → Faq

	if vim.api.orig == nil then
	vim.api.orig = {}

	for name, func in pairs(vim.api) do
	vim.api.orig[name] = func
	end

	local default_win_config = {
	border = "single",
	}

	// Workaround for Bundle resource when running on Xcode previews
	// https://forums.swift.org/t/xcode-previews-swiftpm-resources-xcpreviewagent-crashed/51680/10
	// https://developer.apple.com/forums/thread/664295?answerId=673644022#673644022
	// https://gist.github.com/ctreffs/ad9d23e08d586cf75e4d1c3bb1b1061f

	import class Foundation.Bundle
	import class Foundation.ProcessInfo

	private class BundleFinder {}