Here are some of the things I learned this week, in the order I’ve noted them down. This week I created a separate section for programming to keep things tidy.
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Contact tracing. A joint initiative by Apple and Google to help health organizations throughout the world slow down the spread of COVID-19. This excellent entry on NSHipster is a good place to start if you’re interested in the nitty-gritty details. The official documentation itself can be found here.
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Last week I mentioned free access to the ACM Digital Library during COVID-19. This week I stumbled upon this list of similar offers compiled by Michael Tsai.
# Programming
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The relationship between
size,stride, andalignmentin the memory layout of Swift types, thanks to this excellent article by Greg Heo. -
In Swift Combine, you can filter out nil values using
.compactMap { $0 }(reference). I was usingfilter(_:)before but that still requires force-unwrapping the value in subsequent operations.