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Java’s package private visibility is an underrated feature. When you omit any visibility modifier in Java, then the default (for most objects) is package private, i.e. the object is visible only to types in the same package: class YouDontSeeMe {} class YouDontSeeMeEither {} In fact, a compilation unit (the .java file) can contain multiple such […]
Microsoft T-SQL supports a language feature called table-valued parameter (TVP), which is a parameter of a table type that can be passed to a stored procedure or function. For example, you may write: CREATE TYPE u_number_table AS TABLE (column_value INTEGER); CREATE FUNCTION f_cross_multiply ( @numbers u_number_table READONLY ) RETURNS @result TABLE ( i1 INTEGER, i2 […]
Islenia M Milien Tejada/Islenia Mil Islenia M Milien Tejada/Islenia Mil Sometimes the holidays are filled with the people you love. Other times, they’re marked by an absence. In this special holiday episode, new Code Switch co-host and former Invisibilia producer B.A. Parker tells a story about family, loss and preserving memories before it’s too late. […]
Mac apps built with Xcode 14.0 and 14.0.1 may contain concurrency bugs because the Swift 5.7 compiler can generate invalid code when targeting the macOS 12.3 SDK. If you distribute Mac apps, you should build them with Xcode 13.4.1 until Xcode 14.1 is released. Here’s what happened: Swift 5.7 implements SE-0338: Clarify the Execution of […]
In 2015, I wrote a post about sharing code between unit tests and instrumentation tests on Android. Iain Cunningham just pointed out that the method I outlined no longer works. That’s fine for me because I haven’t used that method in years! Nowadays I use modules, which provide a far superior method of solving the […]
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The mobile-first design methodology is great—it focuses on what really matters to the user, it’s well-practiced, and it’s been a common design pattern for years. So developing your CSS mobile-first should also be great, too…right? Article Continues Below Well, not necessarily. Classic mobile-first CSS development is based on the principle of overwriting style declarations: you […]
A major part of the challenge of architecting UI-focused code bases tends to come down to deciding where to draw the line between the code that needs to interact with the platform’s various UI frameworks, versus code that’s completely within our own app’s domain of logic. That task might become especially tricky when working with […]
CSS is about styling boxes. In fact, the whole web is made of boxes, from the browser viewport to elements on a page. But every once in a while a new feature comes along that makes us rethink our design approach. Article Continues Below Round displays, for example, make it fun to play with circular […]
Nick Lockwood joins John for a discussion about maintaining Swift code bases — from open source projects, to ones worked on by teams of various sizes. Also, the design of ShapeScript, using async/await within unit tests, and much more. RevenueCat: In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, […]