Swift Snippet: selectively update object from an optional new value
Too Long; Didn't Read
<a href="https://hackernoon.com/tagged/following" target="_blank">Following</a> operator can be used to update object from new optional value.This can be used when we do not want <a href="https://hackernoon.com/tagged/object" target="_blank">object</a> to get updated to nil from new optional value.