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Donny Wals 👾
32.4K posts
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Donny Wals 👾
@DonnyWals
iOS Engineer, blogger and author at donnywals.com. Loves learning and sharing knowledge. ❤Dorien -- #swift #ios #swiftlang #iosdev #solopreneur (he/him)
The Netherlands
donnywals.com
Joined May 2009
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41.3K
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  • Pinned
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    Donny Wals 👾
    @DonnyWals
    Dec 21, 2025
    Figured Maxine is going to need a website if I keep working on it...
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    Maxine - Strength training made simple
    From maxine-app.com
    14K
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    Donny Wals 👾
    @DonnyWals
    Feb 28, 2020
    iOS job interviewers be like: “So you’re good with people, deliver on time, have a vast understanding of UIKit and the iOS platform, know both Objective-C and Swift, and you’ve tamed the beast called Xcode and code signing? Cool! Now do a binary sort please.”
  • user avatar
    Donny Wals 👾
    @DonnyWals
    Jun 10, 2024
    Image
    42K
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    Donny Wals 👾
    @DonnyWals
    Jun 2, 2021
    Remember that teaser tweet from earlier? I'm ready to share the news! I quit my job and starting in July I'm off on my own. My plan is to focus more on my blog, books, and workshops, combined with contracting (got to pay those bills). Super excited about this new adventure 😱
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    Donny Wals 👾
    @DonnyWals
    Sep 28, 2021
    iOS developers when someone presents yet another new app architecture at a meetup
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    Tomasz Łakomy
    Runway
    00:00
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    Tomasz Łakomy
    Runway
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    Donny Wals 👾
    @DonnyWals
    Apr 22, 2021
    Finally figured out how to deal with charging the Magic Mouse during the workday.
    Picture of a Magic Mouse charging with another Magic Mouse next to it
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    Donny Wals 👾
    @DonnyWals
    Sep 30, 2021
    Don’t think for a second that not having a CS degree automatically means you’re less of a programmer. I never got a CS degree and I’d say I’m doing just fine 👍🏼
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    Donny Wals 👾
    @DonnyWals
    Nov 30, 2022
    Amazing how one little `if` can ruin scrolling performance in a large SwiftUI List 😅
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    Donny Wals 👾
    @DonnyWals
    Feb 1, 2024
    Some personal news 😱 This morning my wife gave birth to an amazing and beautiful little girl. Welcome to the world, Sofia Rosalie Wals! Both mother and baby are doing fantastic, I'm so proud of them both ❤️
    17K
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    Donny Wals 👾
    @DonnyWals
    Feb 5, 2021
    Yay! Homebrew now has official Apple Sillicon support 🙌🏼 brew.sh/2021/02/05/hom… Run `brew update` in your terminal to upgrade 👍🏼
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    3.0.0
    From brew.sh
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    Donny Wals 👾
    @DonnyWals
    Jun 26, 2022
    In Xcode 14.0 Beta 2 Combine has received a super welcome update! They've added primary associated types to Publisher so now we can write "some Publisher<Output, Error>" instead of erasing to AnyPublisher! Learn more about primary associated types here: donnywals.com/what-are-prima…
    Screenshot of code that uses "some Publisher<Bool, Never>" instead of erasing to any publisher.
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    Donny Wals 👾
    @DonnyWals
    Nov 26, 2021
    The iOS Developer experience: 🥱 Preparing Device for development... 😴 Building... 👀 Hit breakpoint 😴 Waiting for LLDB to attach... 👀 po someVariable 😭 Couldn't IRGen expression. Please check the above error messages for possible root causes. 😒 Add print statement instead
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    Donny Wals 👾
    @DonnyWals
    Mar 5, 2021
    We'll refactor and improve this code after the initial release
    Image
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    Donny Wals 👾
    @DonnyWals
    Jun 7, 2021
    So who's making a shortcut to clear Derived Data? #wwdc21

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