Jonathon Mah

@dev_etc

Learning Cocoa since 2001.

San Francisco, CA
devetc.org
Joined October 2013
1 Photo or video Photos and videos

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  1. 19 Oct 2015

    If anyone is considering , I need to sell my ticket because of last-minute travel. Discount off general admission!

    3 retweets 3 likes
  2. 14 Oct 2015

    Public Service Announcement: '()' is not 'no parameters', it's an ancient feature that will get you in trouble

    70 retweets 48 likes
  3. 2 Oct 2015

    . `performSelector:(actuateFeedback:) withObject:@(0)` gives arg1 the address of an NSNumber, not an int 0. Fun stuff!

  4. 25 Mar 2015

    Filed for the most obvious UIPageViewController bug.

  5. 25 Mar 2015

    Gradually realizing that UIPageViewController (well, _UIQueuingScrollView) has apparently unavoidable crashes. "All animation must be mine!"

  6. 18 Mar 2015

    ASCIIImage is so useful for me right now. I'm tempted to write a live editor — designers would slap me though!

  7. 11 Jan 2015 San Francisco, CA

    Correctly overriding +keyPathsForValuesAffectingValueForKey: is hard!

    2 likes
  8. 11 Jan 2015 San Francisco, CA

    Apple ID disabled twice in 24 hours. Pretty effective denial-of-service, is there any way to break the cycle?

    1 retweet
  9. 8 Nov 2014 San Francisco, CA

    Returning mutable objects is ok, usually.

    1 retweet 1 like
  10. 30 Aug 2014

    Thanks for the instruction Xcode, I would have otherwise just thrown the whole MacBook in the trash.

    1 like
  11. In reply to
    12 Jul 2014

    Thanks , I've found there are still a few mysteries but I'm trying to nail them down.

  12. 7 Jul 2014

    Finally, a guide to text wrapping in Auto Layout:

    1 retweet 5 likes
  13. 13 Jun 2014

    The core idea of Swift: "What if we made a language with no special syntax for characters?"

    2 likes
  14. 25 May 2014

    Compile-time checking plain key path strings in Objective-C with a clang plugin

    19 retweets 23 likes
  15. 25 May 2014 San Francisco, CA

    Adventures with tail recursion and ARC:

    9 retweets 14 likes
  16. 7 Mar 2014

    Duplication is far cheaper than wrong abstractions. We teach novices DRY without teaching them when to break that rule.

    613 retweets 342 likes
  17. Jonathon Mah followed , , and 7 others
  18. 19 May 2014

    In case Jonathon’s tweet wasn’t clear, he’s come up with a cool way to check if string paths are safe IN clang.

    8 retweets 14 likes
  19. 17 May 2014 San Francisco, CA

    Checking key paths with the compiler:

    9 retweets 17 likes

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