TL;DR: Use var
for properties in struct
as long as it serves as a nominal tuple. In most cases, there is no obvious benefit to using let
for struct
properties.
Let's start with a simple example:
struct MyStruct {
let excludedActivityTypes = [ | |
UIActivity.ActivityType.print, | |
UIActivity.ActivityType.openInIBooks, | |
UIActivity.ActivityType.copyToPasteboard, | |
UIActivity.ActivityType.addToReadingList, | |
UIActivity.ActivityType.assignToContact, | |
UIActivity.ActivityType.copyToPasteboard, | |
UIActivity.ActivityType.mail, | |
UIActivity.ActivityType.markupAsPDF, | |
UIActivity.ActivityType.postToFacebook, |
// | |
// FirestoreMonitoring.swift | |
// Monitor | |
// | |
// Created by nori on 2020/08/19. | |
// Copyright © 2020 1amageek. All rights reserved. | |
// | |
import Foundation | |
import FirebaseFirestore |
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) |
application: you-app-name-here | |
version: 1 | |
runtime: python | |
api_version: 1 | |
default_expiration: "30d" | |
handlers: | |
- url: /(.*\.(appcache|manifest)) | |
mime_type: text/cache-manifest |