Xcode 10 Playgrounds New Play System Improve Speed and Productivity.
<b>Playgrounds Save Time</b><br/><p>In Xcode 10, playgrounds are getting some serious love in the speed department. Here's the new play system.</p>
Playground Secrets and Power Tips (v2) by Erica Sadun
Note this review has been updated for the release of version 2. I have been reading Playground Secrets and Power Tips by Erica Sadun, which you can purchase through the iBooks store (click the title to go directly to the book in the store).