No, you're not going to create the next big Swift program in the Sandbox, but for those wanting to get their feet wet with Apple's newest object oriented programming language, the IBM Swift Sandbox is worth the look.
And it underscores IBM's continued partnership with Apple.
Perhaps best of all, by putting a Swift environment in the cloud, you can use the language on any device running a modern browser.
I whipped a few lines of code together in Safari on the iPad Pro - my full time computing device - and was able to run them without a problem or any lag. The text editor highlights common code errors just as you'd expect in an Integrated Development Environment or code creation tool.
That's super useful in a classroom setting where students can tinker with Swift to learn app development.
Will Swift gain traction to challenge Java and other popular languages?
While Apple might hope so, it's too early to say. But with backing from IBM and other big names in the computing industry, it's possible. And that would be a big step for Apple, which typically keeps its software technologies close at hand.