A Using Combine update now available!

A new version of Using Combine (v0.7) is now available!  The free HTML site of Using Combine has been updated automatically, and the PDF and ePub versions are available on Gumroad. This version has relatively few updates, primarily focused on some of the missing publishers and resolving the some of the egregious flaws in ePubContinue reading “A Using Combine update now available!”

Using Combine (v0.6) available!

A new version of Using Combine is available! The free/online version of Using Combine is updated automatically as I merge changes, and the PDF and ePub versions are released periodically and available on Gumroad. https://gumroad.com/js/gumroad.js Purchase Using Combine The book now has some amazing cover art, designed and provided by Michael Critz, and has benefitedContinue reading “Using Combine (v0.6) available!”

navigating Swift Combine, tuples, and XCTest

What started out as a Github repository to poke at SwiftUI changed course a few weeks ago and became a documentation/book project on Combine, Apple’s provided framework for handling asynchronous event streams, not unlike ReactiveX. My latest writing project (available for free online at https://heckj.github.io/swiftui-notes/) has been a foil for me to really dig intoContinue reading “navigating Swift Combine, tuples, and XCTest”

Commodity and fashion with SwiftUI

I’m only just starting to dig into the new declarative UI framework that Apple announced at WWDC this year: SwiftUI, but already there are a few patterns emerging that will be fascinating to watch in the Mac & IOS development community in the coming months. The huge benefit of SwiftUI is, as a declarative framework,Continue reading “Commodity and fashion with SwiftUI”

IOS Dev Diary – using UIDocument

I have been working on an artist utility app, with the primary purpose to present an image and super-thin grid overlay. The inspiration came from the cropping functionality in the Photos app – but that’s very ephemeral to a the act of croping an image, and isn’t easily viewable on a continued basis (such asContinue reading “IOS Dev Diary – using UIDocument”

IOS 12 DevNote: Embedded Swift Frameworks and bitcode

A side project for the barista’s at my favorite haunt has been a fun “getting back into it” programming exercise for IOS 12. It’s a silly simple app that checks the status of the network and if the local WIFI router is accessible, and provides some basic diagnostic and suggestions for the gang behind theContinue reading “IOS 12 DevNote: Embedded Swift Frameworks and bitcode”

Vapor 3 and a few random experiments

This past week I dug more deeply into server-side swift, specifically with Vapor 3. Vapor was interesting because it recently built over SwiftNIO, and initial reports of its performance were very positive. A highly performant HTTP application based framework in a memory safe language? Worth a look! I have used dynamically typed languages (NodeJS/TypeScript/Javascript andContinue reading “Vapor 3 and a few random experiments”

spelunking swift package manager – Workspaces

I finished up my last bug fix and tackled another. SR-4261 took me deep into some new areas of the code base that I wasn’t familiar with. I did more spelunking to have a decent clue of what the code was doing before making the fix. The results of the spelunking are this post. Many of the recent changes toContinue reading “spelunking swift package manager – Workspaces”