Run top-level Swift statements - Swift

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Run top-level Swift statements

A tight crop of a Swift code file with line numbers: line 1 `print("Hello")`, line 2 `print("Goodbye")`; add a simple downward arrow from line 1 to line 2 labeled “runs downward.”

A Swift file can start directly

A tiny Swift file can be this simple: print("Hello") on line 1, then print("Goodbye") on line 2. When you run it, Swift starts at the first runnable line and moves downward.