No more semicolons

Those of us who have been programming for some time might note that the usually all-important semicolon (;) is missing. This isn't a mistake; in Swift, we don't have to use a semicolon to mark the end of an expression. We can if we'd like, and some of us might still do it as a force of habit, but Swift has omitted that common concern.

Note

The use of the semicolon to mark the end of an expression stems from the earliest days of programming when code was written in simple word processors and needed a special character to represent when the code's expression ends and the next begins.