What in the World is an “Escaping Closure” in Swift?

If you’re mostly in the business of coding up closures to pass off to other functions as callbacks, you may not have run into the concept of an “escaping closure” yet. When you step out of the role of consuming other peoples’ APIs in to the realm of creating your own (and you do this all the time!), this is where you’ll likely run into the concept of an “escaping closure” in certain scenarios....

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